













			    SERIAL SOLUTIONS, INC



				  presents



			      "PC BLACKBOARD"

				Version 2.0




















Published by:

			     Serial Solutions, Inc.
				 P.O. Box 2392
			    Littleton CO. 80161-2392

				 PC Blackboard
			  Release 2.0 - December, 1993
		     Copyright (c) 1993, Serial Solutions, Inc.


Disclaimer of Warranties and Limitations of Liabilities

	This manual and the enclosed software were prepared by Serial 
Solutions, Inc. While the authors and program developers have taken 
reasonable care in preparing this manual and the files on the enclosed 
diskettes to assure their accuracy, Serial Solutions, Inc. and the authors 
assume no liability resulting from any inaccuracy or omissions contained in 
them of from the use of the information or programs contained here.

	The authors and Serial Solutions, Inc. have no expressed or implied 
warranty of any kind with regard to these programs or to the supplemental 
documentation in this manual. In no event, shall the authors, the program 
developers, or Serial Solutions, Inc. be liable for incidental or 
consequential damages in connection with or arising out of the furnishing, 
performance, or use of any of these programs or documentation. This 
disclaimer includes but is not limited to any loss of service, loss of 
business or anticipatory profits, or consequential damages resulting from 
the use or operation of the enclosed software.



















			    Serial Solutions, Inc.
				P.O. Box 2392
			   Littleton, CO 80161-2392
			       (303) 347-8547


			      User Feedback Form


Serial #:_________________________       Date Purchased:________________

Name:_____________________________       Title:_________________________

Company Name:_____________________       Department:____________________

Address:________________________________________________________________

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				 Summary of
				  CONTENTS

				Introduction 

			       Cursor Action  

			       Drawing Tools
			  Free Hand Draw, Rectangle, 
			  Square, Line, Circle, Point

			      Main Menu Options

				  Palette

				 Attributes

			       Communications
			Call Status, Connect, Disconnect

			     Configuration Menu
			  Modem Setup, Tablet Setup

				 Print Menu

				    Files
			Save File, Load File, Send File, 
				  Directory

				   Fax Menu
			 Load Fax, Fax File, Fax Screen,
			     Rename Fax, Directory

				 Send Screen

				   Undo

			       Selective Erase

				Clear Screen

				   Exit

			       Document Pages 
		      Scroll Left, Scroll Right, Scroll Up, 
		     Scroll Down, Top of Page, Bottom of Page, 
			    Preview, Change Page

				Function Keys

			     Beginning the Program

			       Trouble Shooting

				Error Messages
			      Error 1 - Error 36




































				 PC Blackboard

	The PC Blackboard program is a simple point-to-point interactive 
communication program that can be used on any IBM "XT/AT" compatible PC.  
It allows two PCs to interact over a standard telephone line.  Data 
transfer and interaction may be achieved at varying speeds, depending on 
the type of modem being used.  Quite simply, it provides the same 
flexibility a teacher would have in a classroom, and more.  It allows users 
to free hand draw and add text from the keyboard on a blank screen.  
Drawing tools are also available to create geometric shapes and lines for 
flowcharts, diagrams or any other conceivable purpose.  Further, the user 
may send and receive faxes.  With those received, he/she may interact on 
those documents with the interactive tools.

	The idea behind PC Blackboard is two fold.  First, a complete 
software solution to enhance a standard phone call.  In this way, the user 
could take the floppy disk to any "XT/AT" compatible machine with a modem.  
The program then allows the users to interact, so that ambiguous or 
intangible ideas and concepts could be expressed more concretely through the 
use of our interactive functions.
	Second, with the addition of a fax modem, users can now receive 
faxes directly into their PC.  Simply stated, whatever document you wish to 
discuss is faxed to your computer, displayed on screen, and then annotated 
upon as desired.  Sites on-line can then use the interactive capabilities 
to highlight points of the document, or to add notes to the document.  
Moreover, anything you put to your screen may be faxed to a fax machine.

	The interactive functions include:

	- Free hand draw, Squares, Rectangles, Lines, and Circles

	- Change drawing attributes (line widths and filled or non filled 
	  shapes)

	- Text input

	- Point

	- Screen transfer

	- File transfer.  The file is sent and saved at the remote site.

	- Clearing local and remote screen

	- Loading and saving of one bit per pixel PCX images

	- Receiving, sending, and loading of fax documents

	- Change drawing color and/or Background color.

	We, at Serial Solutions, Inc., feel this will help diminish those 
frustrating calls where it takes hours to explain ideas and concepts, that 
should only take minutes.  As well as, cutting down on unnecessary business 
travel, which is necessitated by the inability to explain ideas thoroughly 
through language alone.  This is accomplished most through the ability to 
control what is on both screens.  That is, for a multi-page document, it 
is very difficult to get people on the correct page, paragraph, and/or 
sentence.  Now, since the document is displayed at both sites, this 
confusion factor is eliminated.  The users all see the same portion of the 
document and may then interact on those portions together.  Then as one 
site scrolls through the document, the document is automatically scrolled 
through at the remote site.

	Technical Requirements
	1) An IBM "XT/AT" compatible PC
	2) A CGA card or higher
	3) A pointing device (mouse or graphics tablet).
	4) A modem

	Options
	Fax/Data modem - for utilization of fax capabilities

			      
		      CURSOR ACTION VIA INPUT DEVICES

	Movement is achieved by moving your pointing device (mouse or stylus) 
or by using the arrow keys on the keyboard. All the functionality of this 
program can be reached via pop-up menus through the keyboard, a mouse, 
and/or a Summa compatible graphics tablet.  You may use both a mouse and a 
tablet in the program; you are not limited to one or the other, however, 
additional serial ports may be necessary.

Keyboard
	The keyboard can be used to move the cursor, pop-up the main menu, 
select and change options within the main menu and submenus, use function 
keys for special options, and enter text.  The location of the cursor on the 
screen determines where text will be placed on the screen.  

Note: If you have a tablet installed, make sure that the stylus is not on 
      the tablet, or your text will all occur in the same location.  In 
      other words, you will keep putting each character on top of the 
      preceding character.

	The arrow keys will move the cursor to the left, right, up, or down, 
depending on which arrow key is pushed.  However, the cursor will only move 
one pixel at a time, so it will be very slow to move around the screen.  The 
keys to remember are:

	<Esc> - The <Esc>(Escape) key has three uses:
	 1). Calling the main menu if there are no menus on the screen.
	 2). Exiting from any menu that you are currently in.
	 3). Canceling the drawing of a circle, line, square, or rectangle if
	     hit while the ghost image is on the screen.  That is, when you 
	     are either holding the left button of a mouse down, or while 
	     holding down on the stylus.

	 <Enter> - The <Enter> key has three uses:
	  1). Activating or changing the current highlighted option on a menu. 
	      This depends on the type of menu currently occupying the screen.
	  2). Moving your cursor to the beginning of the next text line. 
	      This is the result of using the enter key if there are no menus 
	      on the screen.
	  3). Selecting text that has been input by the user. This generally 
	      comes in the form of entering the name of a file which is to 
	      be loaded, saved, or transmitted or entering a telephone 
	      number for the system to dial.

Mouse
	The mouse allows you to access all menus, access all items within 
those menus, and utilize all tools.  To move the cursor, simply move your 
mouse.  To pull up the main menu, click the middle button of a three button 
mouse, or the first and second buttons simultaneously of a two button mouse.  
To select an option within a menu, click the left button when the desired 
option is highlighted or when the cursor is in a location to change an 
option (depending on the type of menu).  To leave or escape from a menu, 
hit the right button.

	When there are no menus on the screen, you can change your drawing 
tool by clicking the right button.  This will scroll through the available 
tools, (your cursor will change to the shape of the new tool).

Tablet
	The tablet allows you to access all items within menus and to utilize 
all tools.  To move the cursor, simply move your stylus.  The only way to 
pull up the main menu, if you only have a tablet, is to hit the Escape key 
on the keyboard.  To select an option within a menu, push the stylus down on 
the tablet when the desired option is highlighted, or when the cursor is in 
a location to change an option.  To leave or escape from a menu, push the 
button on the stylus.

	When there are no menus on the screen, you can change your drawing 
tool by pushing the button on the stylus.  This will scroll through the 
available tools, (your cursor will change to the shape of the new tool).

	To use a tool, position your cursor where you wish to start, then 
push the stylus down on the tablet.  This is the same as clicking the left 
button on the mouse.
	See mouse section for further instructions.


Select/Deselect
	Before proceeding, some terms need to be defined:
		Select: The term "select" means to 
		(1) hit the Enter key from the keyboard,
		(2) click on the left button of the mouse, 
		(3) push down on the stylus.

		Deselect: The term "deselect" means to 
		(1) hit Escape on the keyboard, 
		(2) click the right button of the mouse, 
		(3) push the button on the stylus.


					Select                  Deselect                
		Keyboard               <Enter>                   <Esc>
		Mouse                Left Button              Right Button
		Tablet               Down Stylus            Button on Stylus


				Drawing Tools

	This program provides six drawing tools, all represented by different 
cursors.  The shape of the cursor determines which tool you are using. These 
tools are changed by either clicking on the right button of your mouse or by 
pushing the button on the stylus when there are no menus on the screen.

	To use a tool, position your cursor where you wish to start. Use the 
select key(button) and the tool will be under your control. The following 
lists what happens for each tool:

Free Hand Draw
	Free hand draw is represented by the Pencil Icon.  As you move the 
pointing device while holding down the left button of a mouse or holding 
down the pen, you will draw a continuous line. 

Rectangle
	The rectangle is represented by the Rectangle Icon. As you move the 
pointing device while holding down the left button of a mouse or holding down 
the pen, you will see a ghost box.  You may move this ghost box above or 
below your starting point, as well as to the left or to the right of your 
starting point.  If you let up on the left button of the mouse or let up the 
pen, the rectangle will be drawn with the present attributes, with the 
coordinates you have specified by the ghost box.  If you do not wish to draw 
the rectangle, simply deselect it.  This will erase the ghost box.

Square
	The square tool will force you to draw perfect squares. The square is 
exactly like rectangle except that you can only move the ghost box to the 
right and below of your starting point.

Line
	The fourth drawing tool is the line drawing tool.  The line tool is 
represented by the angled line, similar to back slash on the keyboard ("/"). 
As you move the pointing device while holding the left button of the mouse 
down or holding down the pen, a ghost line will appear that extends to your 
new position on the screen.  If you release the left button or let up on the 
pen, the line will be drawn with its current attributes between the points 
specified by your ghost line.  If you do not wish to draw the line, simply 
deselect. This will erase the ghost line.

Circle
	The fifth tool is the circle tool.  This allows the user to draw 
circles.  As you move the pointing device while holding the left button of a 
mouse down or by holding down the pen, a ghost circle will appear that grows 
as you move your pointing device.  If you wish to draw the circle, just let 
up the left button or the pen.  If you do not wish to draw the circle, 
deselect it. This will erase the ghost circle.

Point
	The final tool is the pointer.  It is represented by the upward 
arrow.  Point is slightly different than the other tools.  Locally, you 
always see the pointer, but if connected, the remote will only see the 
pointer while you push the left button or hold down the pen.  As long as you 
hold down the left button, the pointer will be displayed at the remote site.

NOTE1: If using a mouse and you wish to deselect the ghost box with the 
       mouse, you must click the right button while you are holding down the 
       left button.  If you wish to deselect the ghost box with the pen, you 
       must push the button on the stylus, while holding the pen down.

NOTE2: With all the tools, you cannot leave the boundaries of the screen.  
       Therefore, your boxes, circles, and lines will stop at the nearest 
       boundary.

       
			      MAIN MENU OPTIONS

	The Main Menu provides you with all the functionality that the P.C. 
Blackboard program offers.  This is the first menu that the user will 
encounter. The main menu can be accessed by "selecting" it. Each option of 
the main menu will be explained in detail in the following sections. Each 
menu function can be "selected" by moving the highlight bar to the desired 
option.  This can be done with the arrow keys on the keyboard, by moving the 
mouse, or by moving the stylus.  Once you are at the desired option, select 
it.  Then, depending on the chosen option, it will either complete the 
function or go to a submenu.  The main menu provides the user with twelve(12) 
options: 
			     (1) Screen colors
			     (2) Tool attributes
			     (3) Communications
			     (4) Configuration
			     (5) Print menu
			     (6) Files menu
			     (7) Fax menu
			     (8) Send screen
			     (9) Undo
			     (10) Selective erase 
			     (11) Clear screen
			     (12) Quit to dos.


				 PALETTE

	The palette allows the user to either change both the background and 
foreground colors if you have a VGA card, or change the foreground color if 
you have a CGA card.

CGA
	If you have a CGA card, you will be able to change the foreground 
only.  After selecting palette from the main menu, a window will appear which 
allows you to change the foreground. You may change the color by selecting 
anywhere on the screen.  That is, you are not constrained to select within 
any confined area or window.  The foreground color will change each time you 
select.  Once you have chosen the desired color, you can leave the palette 
submenu by deselecting it.

VGA
	If you have a VGA card, you can change both the foreground and 
background.  When palette is chosen, a window will pop up that has two boxes 
in it.  One box is labeled foreground, the other is labeled background.  If 
you move your cursor into one of these boxes and select it, the color of the 
chosen option will change.  Thus, if your cursor is in the background box and 
you select on that box, your background color will change every time you 
select within that box.  The same holds true for the foreground box.

NOTE: This only changes the background and foreground locally.  Therefore, if 
      you are connected, it has no effect on the remote screen.


				 ATTRIBUTES

	The attribute option allows you to change the features for the 
presently chosen tool.  Some tools have more attributes than others.  For 
draw and line, you only have the option to change the line width.  For 
rectangle, square, and circle, you can change the line width and you may 
have the object be filled or not.  If you choose fill, the line width will 
not have any effect.  Point does not have any attributes.
	
Line Width:
	You can change the line width by moving your cursor along the grid.  
As the box in the grid moves to the right, your line width will increase.  
The actual line width is represented above this grid.  As you move to the 
left, your line width will decrease.  The minimum line width is one, and the 
maximum line width is four.

Fill:
	For tools having the fill option, you can toggle between having 
filled on or off by positioning your cursor on the box where the word "ON" 
or "OFF" appears.  By selecting on this box, you will toggle to the opposite 
of what is currently displayed.  That is, if the word "ON" appears, by 
selecting on this, the word "OFF" will appear.  This means that previously 
the tool had fill turned on, now it has fill turned off.  Thus, your shape 
will just be an outline.

	Once you have set the attributes, you can leave the attribute menu 
by deselecting it.  If you have fill "OFF", the width of the outline will 
then be determined by the line width you chose.


			       COMMUNICATIONS

	The communications menu allows you to establish a call, disconnect a 
call, and toggle between on-line and off-line.

Call Status:
	Call status indicates whether you are on-line or off-line with your 
remote site.  This can only be selected if you have already established a 
connection.  If you are connected, but wish to do something locally that you 
do not want the remote to see, you may want to go off-line without 
disconnecting.  By selecting on this box, you will toggle between off-line 
and on-line.  If you go off-line, you will be able to do everything except 
send or receive data.  If you go off-line and wish to go back on-line, just 
select on this box again.  A message will occur in the middle of your screen 
with the word "On-Line" or "Off-Line", depending on which state the modem is 
in.

Note: The F1 key will toggle between off-line and on-line and is much quicker 
      to access.

Connect:
	Connect allows you to dial a remote machine so that you may begin to 
interact.  Connect works differently for a modem than it does for a Null 
Modem.

	Null Modem: If you are using a Null modem, this will call the other 
		    PC automatically.  You will not need to input a phone 
		    number.  If the connection is made, both sites will be 
		    notified.

	Modem: The connection process works differently for a modem. When 
	       you select connect, you will be asked to enter the phone 
	       number of the remote site.  You may enter the phone number as 
	       you normally would, with or without hyphens.  

	Example:  Entering: 303-480-9421 and 
			    3034809421  are handled the same.

	Once you have entered the number, press the Enter key and the modem 
will call the remote.  If a connection is made, you will get a message that 
states either which modem is connected or at which baud rate you have 
connected.  If you are using the Telebit Trailblazer or the AT&T Comsphere, 
the message will say "Connect Fast" or "Comsphere Connection" respectively.  
Otherwise, the message will give the baud rate of the current connection. 
Further, the Call Status box will change from "Off-line" to "On-line".
	     
	Tip: An important dial command to know is the comma (","). A comma 
	     is a two second pause.  A pause may be necessary when you have 
	     to wait for an outside line.  This command is useful when 
	     dialing out of a PBX (Private Branch Exchange), or when making a 
	     long distance call.  If you have to dial a 9 before dialing the 
	     phone number, or a 1 for a long distance call, the comma would 
	     follow the 9 and 1.

	Example: A long distance call through a PBX,  < 9,1,303-480-9441 >
		 If the delay is not long enough with one comma, you may 
		 enter multiple commas.

	Before making a call, both sites must verify that they have each 
chosen the same communication device and at the same baud rate.  If both 
sites are not setup the same, there is a good chance that the connection 
will fail.  If you are using a modem and both sites do not have the same 
modem, then select Hayes compatible.  This will allow different types of 
modems to communicate with one another.

Note:  If you are using a Telebit Trailblazer in Hayes Compatible mode, you 
       must manually set it to conventional mode.

IMPORTANT: While attempting to call another PC, the other PC should not have 
	   any menus on the screen.  This will allow the receiving site to 
	   see the "Incoming Message" signal, as well as the connection 
	   message.  This tells the receiver that a call is coming in, and 
	   that a connection has occurred.

Disconnect
	Disconnect does exactly what it says.  If you are connected to a 
remote site, this will disconnect the call.  This is done by simply selecting 
on the DISCONNECT box.  If the call is disconnected, the word "Off-line" will 
appear in the CALL STATUS box.  The calling site will get a message in the 
middle of their screen telling the user that they are going off-line. A 
message will be displayed to the screen that the call has been disconnected.  
The receiving site will also have a message saying that the call is being 
disconnected.


				CONFIGURATION

	This menu allows you to setup both your communication device and 
tablet.  The first two items listed in the menu show which graphics card you 
are using, and if a mouse has been installed.  The second two options allow 
you to change your communication parameters and/or your tablet parameters.  
To change your communication parameters, select "Modem Setup".  To change 
your tablet parameters, select "Tablet Setup".

Modem Setup
	Modem setup has six options: device type, com port, baud rate, 
address, interrupt number, and initialize.

Device:
	The device option allows you to choose your specific mode of 
communication.  Generally, this contains the  type of modem you are going to 
use.  This program supports all Hayes compatible modems, the Telebit 
Trailblazer modem, and the AT&T Comsphere 3820.  The software allows a NULL 
Modem, which is a special cable used to allow two PCs to communicate with 
one another at the same site.  The final choice is "None", which means that 
you are not going to connect to a remote site.  You may choose the modem type 
of your choice by selecting on the box to the right of DEVICE.  This will 
scroll through your options.  The following is a list of acceptable modems 
and their capabilities.

	Null Modem: Select this if you are using a direct connection (a 
		    special cable) from one PC to another.

	Hayes Compatible: If you are not using a Telebit Trailblazer or AT&T 
			  Comsphere modem, you must select Hayes Compatible.  
			  You should also verify that your modem is truly 
			  Hayes Compatible.  (See your specific modem manual 
			  for details on how to set the modem into this mode)

	Telebit Trailblazer: The Telebit Trailblazer allows you to transmit 
			     at speeds of up to 19200 bits per second (bps).  
			     For the Telebit Trailblazer to work in  Hayes 
			     Compatible mode, you must manually set it to 
			     conventional mode. (See your Telebit manual)

	AT&T Comsphere 3820: This modem allows you to communicate with your 
			     modem at speeds up to 115,200 bps.

Com Port:
	This is where you tell the program where your communication device 
(modem or Null modem) is connected.  You have a possibility of four com 
ports.  Therefore, by selecting on the box to the right of COM PORT, you will 
scroll through your options.  It is up to the user to determine which port 
the communication device is connected.  If you choose an incorrect com port, 
the word "None" will appear in the DEVICE box and you will get a message 
saying "Modem Not Found".  If a tablet is connected, you will not be allowed 
to change the com port to the tablet com port.

Baud Rate:
	Baud rate determines the rate at which data is sent.  The software 
allows for data rates from 1200 bps to 115,200 bps.  Although these speeds 
are available, not all modems can use the high-end speeds.  It is up to the 
user to know what speeds your modem handles.  If you set a baud rate which 
the modem cannot handle, you will get a message saying "Modem Not Found" and 
"None" will appear in the DEVICE box.

Address:
	Address shows where the chosen com port can be located within the 
machine.  This option is for experienced users.  A default address will 
appear for each com port.  If you are using a device (such as a fax modem) 
that uses unique addresses for their comports, this default value will need 
to be changed.  Your particular communication device manual will list these 
values.  If a change is required, select on the box next to "Address".  A 
box will appear waiting for you to input the desired address.  If after 
choosing this box you wish to keep the old address, just deselect the box.  
Otherwise, type in the address and hit the <ENTER> key.

Interrupt Number:
	Each com port must have a unique interrupt request number.  A default 
value will appear for the com port chosen, but if you are using a device, 
such as a fax modem, that allows the user to manually change interrupt 
values, the user will need to enter the new interrupt number.  Again, this is 
available for experienced users.  An invalid value can create serious 
problems.  If you do wish to change the interrupt, select the box to the 
right of "Interrupt #".  A box will appear awaiting the user to enter the new 
interrupt value.  If after choosing this box, you wish to keep the old 
interrupt number, just deselect the box.  Otherwise, type in the interrupt 
number and hit the <Enter> key.

Initialize:
	The initialize button allows you to initialize the modem.  The modem 
will automatically be initialized when you leave the modem setup after 
changing one of the above options.  However, there may be a case in which you 
need to initialize the modem without changing any of the above options.  To 
do so, select the "Initialize" box.  The messages displayed will tell you if 
the modem was installed or not.

NOTE: You cannot change any of the parameters within the modem setup if you 
      are already on-line.  Furthermore, if DEVICE is set to none, ADDRESS is 
      set to zero, or INTERRUPT NUMBER is zero you will not be able to select 
      any box until you select a communication device.  If you have changed 
      any of the above options, you will be notified that the new parameters 
      are being used to setup the com port and modem.

Tablet Setup
	Tablet setup has six options: size, com port, baud rate, address, 
interrupt number, and initialize.

Size:
	The size option allows you to select the size of graphics tablet you 
are using.  If no tablet exists, the box will be labeled "None".  The two 
sizes available are "12 x 12" and "6 x 9." You may choose the tablet size of 
your choice by selecting on the box to the right of SIZE.  This option will 
allow you to scroll through your options.

Com Port:
	This is where you tell the program where your graphics tablet is 
connected.  You have a possibility of four com ports.  Therefore, by 
selecting on the box to the right of COM PORT, you will scroll through your 
options.  It is up to the user to determine which port the communication 
device is connected.  If you choose an incorrect com port, the word "None" 
will appear in the SIZE box and you will get a message saying "Tablet Not 
Found".  If a modem is selected, you will not be allowed to change the com 
port to the modem com port.

Baud Rate:
	Baud rate determines the rate at which data is sent.  The software 
allows for data rates from 1200 bps to 115,200 bps.  Although these speeds 
are available, you are advised not to change the default value of 9600.  Most 
graphic tablets use a baud rate of 9600, and if you change this value the 
tablet will most likely not work. If you set a baud rate which the tablet 
cannot handle, you will get a message saying "Tablet Not Found" and "None" 
will appear in the SIZE box.

Address:
	Address shows where the chosen com port can be located.  This option 
is for experienced users.  A default address will appear for each com port.  
In most cases, the default value will be correct for the tablet.  If a change 
is required, select on the box next to "Address".  A box will appear waiting 
for you to input the desired address.  If after choosing this box, you wish 
to keep the old address, simply deselect the box.  Otherwise, type in the 
address and hit the <ENTER> key.

Interrupt Number:
	Each com port must have a unique interrupt request number.  A default 
value will appear for the com port chosen.  Again, this is for experienced 
users.  An invalid value can create serious problems.  If you do wish to 
change the interrupt value, select the box to the right of "Interrupt #".  A 
box will appear awaiting the user to enter the new interrupt value.  If after 
choosing this box, you wish to keep the old interrupt number, just deselect 
the box.  Otherwise, type in the interrupt number and hit the <ENTER> key.

Initialize:
	The initialize button allows you to initialize the tablet.  The 
tablet will automatically be initialized when you leave the Tablet Setup 
after changing one of the above options. However, there may be a case in 
which you need to initialize the tablet without changing any of the above 
options.  One such example would be if you shock the tablet.  This will, in 
some cases, "knock out" the tablet.  Thus, you will need to re-initialize the 
tablet.  To do so, select the "Initialize" box.  The messages displayed will 
tell you if the tablet is installed or not.

Note: The tablet will not be initialized if "NONE" appears in the SIZE box, 
      if the ADDRESS is zero, and/or if the INTERRUPT # is zero.  Furthermore, 
      if SIZE is  set to none, you will not be able to select any box until 
      you select a tablet size.  If you have changed any of the above options, 
      you will be notified if the tablet is installed.

To leave the configuration menu, simply deselect it.


				 PRINT MENU

Print File:
	Print file allows you to print any .PCX images, .TXT or .FAX files.  
Select the file of your choice just as you would for load file.  You can 
either scroll through the possible files or enter the file name.  You must 
add the file extension if you manually input the file name.  Once you have 
selected a file to be printed, you will see a box in the middle of your 
screen which says "SAVING PRINT FILE."  If you wish to stop printing the 
document for any reason, hit the <Esc> button on your keyboard.  This will 
bring up an error box on your screen, notifying you that the printing was 
aborted.  Otherwise, the document will be printed.

Print Screen/Page:
	Print screen allows you to print the currently displayed page or 
image. If you have annotated on the currently displayed page, those 
annotations will also be included.

	If you wish to stop printing the screen or page for any reason, hit 
the <Esc> button on your keyboard.  This will bring up an error box on your 
screen, notifying you that the printing was aborted.  Otherwise, the document 
will be printed.   


				    FILES

	The files menu provides the user with four options.  It allows you to 
save and load any screens created in this program, send any file to a remote 
location, and change the current drive and directory.

Save File:
	To save a PCX image that you've created, select on the save box.  You 
may save the screen to the file name of your choice or to an existing PCX 
file.

	A) Save a File Via the Scrolling Box:
	   To save your screen to an existing file, just select that filename 
	   when it is highlighted. A maximum of five files will appear in the 
	   box.  To see the remaining files, move your cursor to the bottom of 
	   the box, and it will scroll through the files.  To see files that 
	   were at the top of your list, just move your cursor to the top of 
	   the box.

	B) Manually Entering the File Name:
	   To save the screen to a new file name or to a file name that 
	   already exists, just enter the new filename via the keyboard.  You 
	   may wish to simply type in the name of file, even if it already 
	   exists, since it may take time to find the correct file by 
	   scrolling through all the PCX images.  A window will pop-up and 
	   your file name will appear as you type it.  You do not need to give 
	   a file extension, since PCX will be automatically appended to the 
	   name.

	If you do not wish to save the screen, just deselect it.

Note: F4 will allow you to save the screen to a filename of your choice.  A 
      window will pop-up waiting for your input.

Load File:
	Once you have saved a screen in a file, you may load that screen at a 
later date.  To load, select on the load box.  This will bring up all PCX 
images in the current directory.  If there are none, you will be told so.

	A) Load a File Via the Scrolling Box
	   If you wish to load one of these, move the highlight bar to the 
	   desired file and select it. A maximum of five files will be in the 
	   window at one time.  If there are more in the directory, then by 
	   just moving your cursor to the bottom of the box, it will continue 
	   scrolling through the other files.

	B) Entering the File Name Manually
	   If you wish to enter the name of the file without trying to locate 
	   it by scrolling through all the files, just enter the filename 
	   when the window of all possible images is on the screen. A window 
	   will pop up and the name of the file will occur as you type it. 
	   You do not need to add the PCX extension.  When you have completed 
	   the title, hit the Enter key.

	If you do not wish to select a file, just deselect this window.  If 
you are connected to another PC and this image also exists on that machine, 
you will automatically load this image on the remote screen.

Note: If you have loaded a file that was previously a fax file, you will 
      notice that only a portion of the page is on the screen.  (See the 
      Document Pages section on page for a discussion on individual pages.)

Send File:
	Send file allows you to send any file to another PC, if you have 
already established a connection.  It will be saved in the remote's current 
directory.  You select the file of your choice just as you would for load and 
save file.  You can either scroll through the possible files or enter the 
filename.  In this case, you must add the file extension if you manually 
input the file name.  Once you have selected a file, a window will pop up 
with the file to be sent, as well as the total number of packets to be sent 
and a running count of the number of packets sent.  The remote site will have 
the same window on their screen, so that the remote site realizes that a file 
is being received.  It too, will have a running count of received packets.  
Thus, this is a very useful file transfer feature.  The remote site cannot 
have any menus on the screen, or the file will not be received.

	If you wish to stop sending the file for any reason, hit the Escape 
button on your keyboard.  This will bring up an error box on your screen, 
notifying you that the transmission was aborted.

Directory:
	The directory option allows you to change your current drive and 
directory to any existing drive and directory.

	A) Change Drive:
	   To change the drive, select drive when it is highlighted.  This 
	   will then bring up a window with all available drives.  Just 
	   select the desired one.  To leave the drive menu, just deselect 
	   it.

Note: If you choose drive "A" or "B", make sure that a disk is in the desired 
      drive and that the door is shut if it is a 5 1/4 drive.

	B) Change Directory:
	   To change directory, move the highlight bar to the desired 
	   directory and select it. The ".." option will take you to the 
	   parent directory of the current directory.

	   To leave the Directory Menu, simply deselect it. You will notice 
that when you return to the main directory menu, that your current path is 
shown below the menu.  This is to help you make sure that you are in the path 
of your choice.


				   FAX MENU

	The Fax Menu provides the user with five options.  It allows you to 
load received faxes, fax a fax or PCX file to a fax machine, fax a screen to 
a fax machine, rename a received fax, and change the current drive and 
directory.

Load Fax:
	Once you have received a fax, you may now load that document.  To 
load, select on the load box.  This will bring up all FAX documents in the 
current directory.  If there are none, you will be told so.

	A) Load a Fax Via the Scrolling Box
	   If you wish to load one of these, move the highlight bar to the 
	   desired file and select it. A maximum of five fax files will be in 
	   the window at one time.  If there are more in the directory, then 
	   by just moving your cursor to the bottom of the box, it will 
	   continue scrolling through the other fax files.

	B) Entering the Fax File Name Manually
	   If you wish to enter the name of the fax file without trying to 
	   locate it by scrolling through all the fax files, just enter the 
	   file name when the window of all possible fax documents is on the 
	   screen.  A window will pop up and the name of the file will occur 
	   as you type it.  You do not need to add the FAX extension.  When 
	   you have completed the title, hit the Enter key.

	If you do not wish to load a fax file at this time, simply deselect 
the file box. If you are connected to another PC and this image also exists 
on that machine, you will automatically load this image on the remote screen.

Note: If you load a fax file, you will notice that only a portion of the page 
      is on the screen. (See the Document Pages section on page for a 
      discussion on individual pages.)

Fax File:
	Fax file allows you to send any received faxes or PCX images to a fax 
machine or PC fax board.  You select the file of your choice just as you would 
for load fax file.  You can either scroll through the possible files or enter 
the filename.  You must add the file extension if you manually input the file 
name.  To use this feature, you must first select "FAX BOARD" in your 
communications menu as your communications device.  Once you have selected a 
file to be faxed, you will see a box in the middle of your screen which says 
"CONVERTING TO FAX FORMAT."  Depending on the complexity of the image and the 
number of pages in the file, this could take a few minutes to get set-up.  
Once the conversion is complete, a window will pop up with the number of 
pages to be sent and a running count of the number of pages sent.  Further, 
a window will pop-up, asking you to enter the fax machine's phone number.  
If you do not wish to fax this document at this time, just deselect.  
Otherwise, after the number has been entered, your PC will call the fax 
machine and send the document page by page.

	If you wish to stop sending the document to the fax machine for any 
reason, hit the Escape button on your keyboard.  This will bring up an error 
box on your screen, notifying you that the transmission was aborted.  
Otherwise, after the document has been faxed completely, the Fax box will 
disappear, and you will return to the Fax Menu.

Fax Screen:
	Fax screen allows you to send your screen or particular page to a fax 
machine. When this feature is selected, you may have two options.  If you are 
displaying a page of a multi-page document, you will be asked if you wish to 
send the entire document.

	To answer "YES", you can either highlight the "YES" and select it, 
	or hit 'Y' or 'y' on your keyboard.

	To answer "NO", you may highlight the "NO" and select hit, hit 'N' or 
	'n' on the keyboard, or simply deselect this box.

	If you answered "YES", the entire document will be faxed.  If you 
have annotated on the currently displayed page, those annotations will also 
be included.  If you answered "NO", only the current page, with its 
annotation, will be faxed.

Note: If you are displaying a screen image (one that does not go beyond the 
      limits of the screen), or a single page fax, you will not be prompted 
      to ask about sending the entire document.

	To use this feature, you must first select "FAX BOARD" in your 
communications menu as your communications device.  Once you have selected a 
file to be faxed, you will see a box in the middle of your screen which says 
"CONVERTING TO FAX FORMAT."  Depending on the complexity of the image and the 
number of pages in the file, this could take a few minutes to get set-up.  
Once the conversion is complete, a window will pop up with the number of 
pages to be sent and a running count of the number of pages sent.  Further, 
another window will pop-up, asking you to enter the fax machine's phone 
number.  If you do not wish to fax your screen at this time, just deselect.  
Otherwise, after the number has been entered, your PC will call the fax 
machine and send your current screen page by page.

	If you wish to stop sending the document to the fax machine for any 
reason, hit the Escape button on your keyboard.  This will bring up an error 
box on your screen, notifying you that the transmission was aborted. 
Otherwise, after the screen has been faxed completely, the Fax box will 
disappear, and you will return to the Fax Menu.

Rename Fax:
	Rename fax allows you to rename a fax document to another fax 
document.  The reason for this is due to the way "P.C. Blackboard" saves 
incoming faxes.  "P.C. Blackboard" will provide a unique name to each 
received fax.  It will consist of six numbers and two characters.  The first 
six numbers are a combination of the day, month, and hour.  The last two 
characters are created to insure uniqueness.  It is recommended that you 
rename these files to a name which is more descriptive of the fax itself.


Directory:
	The directory option allows you to change your current drive and 
directory to any existing drive and directory.

	A) Change Drive:
	To change the drive, select drive when it is highlighted.  This will 
then bring up a window with all available drives.  Just select the desired 
one.  To leave the drive menu, just deselect it.

Note: If you choose drive "A" or "B", make sure that a disk is in the desired 
      drive and that the door is shut if it is a 5 1/4 drive.

	B) Change Directory
	   To change directory, move the highlight bar to the desired 
	   directory and select it. The ".." option will take you to the 
	   parent directory of the current directory.

	To leave the Directory Menu, simply deselect it. You will notice that 
when you return to the main directory menu, that your current path is shown 
below the menu.  This is to help you make sure that you are in the path of 
your choice.


				 SEND SCREEN

	If you are connected to another PC, this will send your screen to the 
remote's screen. Once again, the remote cannot have any menus on the screen, 
or the screen will not be received.  A box will appear at both sites showing 
the users the percentage of data sent and received.

Note: Hitting the F3 key on the keyboard will also send your screen to the 
      other PC. This is usually more convenient than going back to the main 
      menu to send your screen.

	If you wish to stop sending the screen for any reason, hit the Escape 
button on your keyboard. This will bring up an error box on your screen, 
notifying you that the transmission was aborted.


				      UNDO

	The undo feature will remove all annotations from the screen since 
the last save of the image.  This includes free hand draw, shapes, and text.  
This means that the original image will now be in place, without the 
annotation.  If you wish to make any annotation permanent, save the image via 
the files menu.  If you do save the image, undo will not remove the marks made 
prior to saving the image.

	To undo, simply select "UNDO" from the Main Menu.  If there is not 
enough disk space for undo, you will get an error message and be returned to 
the Main Menu.  If there is enough disk space, all annotation marks made 
since the last save will be removed.


				 SELECTIVE ERASE

	This feature allows the user to remove annotation from a user 
defined area on the screen.  Select "Selective Erase" from the main menu.  
Your cursor will be represented by the cross.  The user then positions this 
cross where they wish to remove annotation.  A ghost box will appear.  Drag 
the box to enclose the desired area to be erased and let up on the pen or 
release the left button of the mouse.  This works just like the rectangle 
drawing tool.  Any annotation within the box will now be removed from the 
image.  If you do not wish to erase that particular area on the screen, 
deselect it.  If you had previously saved the image with the annotation, 
you will not be able to erase those annotations.  Therefore, you may only 
erase annotation marks since the last save.  When you are finished using 
selective erase, deselect and you will return to the previous drawing tool.


				CLEAR SCREEN

	This will clear your screen to your current background color.  If you 
are connected to another PC, it will clear their screen also.

Note: Hitting the F2 key on the keyboard will also clear your screen.  This 
      is usually more convenient than going back to the main menu to clear 
      your screen.

       
				    EXIT

	The final option on the menu is Exit.  This will exit you from "P.C. 
Blackboard" and return you to DOS.  If you are connected, it will disconnect 
the call first, then exit to DOS.

Note: All drawing tool attributes and all parameters for communications and 
      the tablet are saved.  So the next time you enter the "P.C. Blackboard" 
      program, they will all be just as you left them.

				     
				 DOCUMENT PAGES

	Documents received from a fax machine are displayed differently than 
images created in the "P.C. Blackboard" program.  Only a portion of each page 
can be shown at one time.  This is due to the resolution required to display 
the amount of data that it necessary for a fax image.  Therefore, we have 
created a virtual page.  That is, each page extends to the right of the 
screen, as well as below the screen.  Through the document queue, the user 
can then scroll through the document.  The options will appear in a queue in 
the bottom, right hand corner of the screen.  This queue will allow you to 
scroll left and right, up and down, jump to the top of the page, jump to the 
bottom of the page, and go to a particular page of a multi-page document.  
Further, you may put the entire page on the screen.  This queue is the 
interface for the document pages.  As you move your cursor towards the bottom 
of the screen, your cursor will change to a CROSS.  As you position your 
cursor over the desired icon and select it, the function, associated with 
that icon, will occur.  The following list provides a description of the 
document queue's options.

	A) Scroll Left: This is represented by the arrow pointing left.  This 
will allow you to display portions of the screen which lie to the left of what 
is currently displayed on your screen.  If nothing exists to the left of your 
image, this function will do nothing. This just means that you have reached 
the left side of the page.

	B) Scroll Right: This is represented by the arrow pointing right.  
This is just like the scroll left feature, except that it allows you to 
scroll right.  This will allow you to display portions of the screen which 
lie to the right of what is currently displayed on your screen.  If nothing 
exists to the right of your image, this function will do nothing.  This just 
means that you have reached the right side of the page

	C) Scroll Up: This is represented by the arrow pointing up.  This 
will allow you to scroll towards the top of the document.  That is, portions 
of the page that lie above your currently displayed page will now be 
displayed, while less of the bottom portion will be displayed.  When you have 
reached the top of the document, this function will have no effect.

	D) Scroll Down: This is represented by the arrow pointing down.  This 
will allow you to scroll towards the bottom of the document.  That is, 
portions of the page, which are below your currently displayed portion, will 
now be displayed, while less of the currently displayed portion will be on 
the screen.  When you have reached the bottom of the document page, this 
function will have no effect.

	E) Top of Page: This is represented by the capitol 'T'.  This will 
automatically jump to top of the image.  This is more convenient than 
continually scrolling to the top of the page.  Basically, this is used to 
save the user the time of scrolling.

	F) Bottom of Page: This is represented by the capitol 'B'.  This is 
similar to the Top of Page function, except that it jumps to the bottom of 
the page. Again, this is meant to save the user from continually scrolling 
down the page.

	G) Preview: This is represented by the capitol 'P'.  This function 
allows you to display the entire page on the screen.  It will be difficult to 
read anything within the document, but it is used more as a reference point.  
That is, it can be used to establish which area of the document you wish to 
discuss.

Note: This function shows why it is necessary to only show a portion of the 
      page at any given time.  Otherwise, you would not be able to read 
      anything on your screen.

	H) Change Page: This is represented by the current page number.  When 
you first load a document, the number '1' will appear in this box.  If you 
touch on  this box, another box will appear in the middle of your screen.  
This box will allow you to display any page that exists in the document. As 
you move your pointing device, the available pages will appear. When you come 
to the desired page number, select it.  The program will then load this page 
to your screen.  If this is only a one (1) page document, selecting this 
option will do nothing.

	If the document queue is in your way, hit the F6 key on the keyboard 
to take the queue away.  You can now use your drawing tools within this area.  
However, you will not be able to scroll, preview, or change pages until you 
bring the queue back.  To bring it back, you must hit the F6 key once again.


				FUNCTION KEYS

	F1 - On-Line/Off-Line: If you are connected to a remote site, this 
will toggle between off-line and on-line.  If you are on-line, you will go 
off-line, and if you are off-line, you will go on-line.  A message will 
appear in the bottom right hand corner with the word "On-Line" or "Off-Line", 
depending on which state the modem is in currently. (See the Call Status 
portion of the Communications section for an understanding of on-line and 
off-line.)

	F2 - Clear Screen: This will clear your screen to the current 
background color.  If you are connected to a remote site, this will clear 
their screen to their background color.

	F3 - Send Screen: If you are connected to a remote site, this will 
send your screen to the remote's screen.

	F4 - Fax Screen: This will fax your screen, current page of FAX or 
PCX file, or entire FAX or PCX file. (See part 3: Fax Screen in the Fax Menu 
section.)

	F5 - Save Screen: Allows you to save the screen to a filename of your 
choice.  The maximum number of characters in the filename is eight.  The 
filename will automatically become a PCX image, so you do not need to add an 
extension.  This is quicker than accessing the save option under the Files 
menu.  A window will pop-up and wait for the file name to be typed in.  When 
you are finished, hit the Enter key, and the screen will be saved to the file 
name you just typed in.  If you do not wish to save the screen after hitting 
the F4 key, deselect it.

	F6 - Toggle Document Queue: This will toggle the document queue.  If 
the queue is displayed, this will take it away. If it is not displayed, it 
will display it.  This is a useful feature, when the queue is covering 
something you wish to discuss, or when you wish to draw within the area 
occupied by the queue.

	F7 - Change Tool: This function key will automatically change to the 
next drawing tool in the list. This can be very helpful if for some reason 
you don't have a pointing device to change to next tool.

	F8 - Undo: The F8 key will automatically undo any annotation that has 
occurred since the last save. This function key can be much faster than 
bringing up the main menu to undo the screen. 

	F9 - Information Screen: This will bring up the information screen.  
It contains the version number and revision number of the program, as well as 
the serial number.  It also contains Serial Solution's address and phone 
number, which may be useful if inquiries are required.


			     BEGINNING THE PROGRAM

	To start P.C. Blackboard, at the DOS prompt type:

				  C:>PCBB

	When you start the program, a window will pop up with information in 
it.  It contains the program version as well as information concerning 
peripheral devices.  It will tell you if a mouse is installed, whether a 
tablet is installed, the kind of graphic card you have, and the type of modem 
being installed if one exists.  You may want to keep an eye on these as they 
are displayed to confirm that everything you want installed is installed.


			      TROUBLE SHOOTING

	Mouse: If it does not install, first make sure you install the mouse 
driver for the correct com port from DOS.  Second, make sure the mouse is 
connected to the PC. Then make sure it does not conflict with any device.  
That is, make sure you have not assigned another device to the same com port.

	Tablet: If it does not install, make sure it is turned on.  Second, 
make sure it is connected to the PC.  Third, check the configuration screen 
to make sure it is setup for the correct com port.  If it is not, follow the 
steps outlined in the configuration section to re-install it.

	Modem: If it is not found, make sure it is turned on.  Second, make 
sure it is connected to the PC at the correct com port.  Third, make sure 
your modem can handle the baud rate at which you are attempting to set it up 
for.


			       ERROR MESSAGES

	There are thirty-six possible errors that can occur while in the 
"PC Blackboard" program.

Error 1: "Board Detected not Supported"
	This error occurs at start-up when a card is detected that cannot be 
set to the mode that this program requires.  If this error occurs, the 
program will exit to DOS. Generally, this would mean you have a faulty 
graphics card, or you are attempting to use a monochrome card.

Error 2: "Tool File Corrupted - Using Default"
	This error occurs at start-up when the program attempts to read the 
tool file. The tool file holds the previously set attributes for all the 
tools, as well as the communication and tablet parameters.  When this error 
occurs, the tool attributes, the communication parameters, and the tablet 
parameters will be set to their default values.

Error 3: "Unable to Create Tool File"
	This error occurs when exiting from the program.  If this error 
occurs, it means that the program was unable to create a tool file.  Thus, 
any changes made to the tool attributes, communication parameters, and tablet 
parameters will not be saved. Therefore, they will take on their default 
values the next time you enter the "P.C. Blackboard" program.

Error 4: "Not Enough Memory For Data Allocation"
	This error occurs when the program cannot allocate memory for 
internal buffers that will be used for reading and writing to disk.

Error 5: "Not Enough Memory For Menu Allocation"
	This error occurs when the program cannot allocate memory for a menu 
which is to be displayed to the screen.

Error 6: "Error Saving Tool File"
	This error is similar to Error 3, except that the file was created, 
but the Tool file could not be written to.  Again, since the attributes and 
parameters could not be saved, the tool attributes, communication parameters, 
and tablet parameters, will take on their default values.

Error 7: "Time Out Error"
	This error occurs when sending or receiving a file or screen.  If 
data is not received in a time determined by the baud rate being used, this 
error will occur. It means that the data was not sent or received in its 
entirety.  If this error occurs, attempt to re-send.  It may have been a 
problem in the telephone line. If the error persists, you should try two 
things.  First, disconnect the call, and attempt the call again.  This should 
clear up any problems that may have been occurring with the telephone line or 
com port.  Or second, verify that both sites are setup at the same baud rate.  
If you are not, the time out value will not be correct for the actual baud 
rate.  The one with the highest baud rate will time out to early.

Error 8: "Unable To Open File"
	This error occurs when the "P.C. Blackboard" program attempts to load 
a PCX image to the screen, but is unable to.  If this error occurs, attempt 
to reload it.  If it continues to fail, the file is likely to be corrupted.

Error 9: "Invalid Response Code"
	This error occurs when a file or screen is being sent to a remote 
site.  It means an error has occurred in transmission.  You should attempt 
to re-send the file or screen.

Error 10: "Unable To Read From File"
	This error occurs when the "P.C. Blackboard" program is unable to 
read a PCX image which is to be loaded to the screen.  If this error occurs, 
attempt to reload it. If it continues to fail, the file is likely to be 
corrupted.

Error 12: "Unable To Write To File"
	This error occurs when attempting to save your screen to disk.  If 
this error occurs, attempt to re-save the screen.  If it continues to fail, 
you may want to check your hard drive or floppy disk to make sure enough 
memory exists to save the image.

Error 13: "Graphic Card Does Not Handle This Image"
	This error occurs when the program attempts to load a PCX image which 
is not a one bit per pixel image.  Other PCX images are too complex for the 
mode being utilized.

Error 14: "Invalid File or Path"
	This error occurs when the user attempts to change the current 
directory to a directory that does not exist.

Error 15: "Unable to Rename File"
	This error occurs when you attempt to rename a received fax to a new 
name of your choice, and the PC is unable to perform this action.

Error 16: "Unable to Delete File"
	This error occurs when the PC is unable to delete the file you have 
selected to be deleted from the File Menu.

Error 17: "Not a Valid PCX Image"
	The PCX image that you are attempting to load, is not in the correct 
PCX format.

Error 18: "Fax Response Error"
	This error may occur during the transmission of a fax image. You 
should try to send the image again.

Error 19: "User Aborted Transmission"
	This error occurs when the user aborted the transmission of a file or 
screen.

Error 20: "Fax Board Not Installed"
	This error occurs if you try to access the fax file or fax screen/page 
options within the Fax Menu. To remedy this problem, setup your fax/data modem 
within the configuration menu.

Error 21: "Unable to Continue, Already On-Line"
	This error occurs if you attempt to change communication parameters 
while you are connected. You must first disconnect from the remote site 
before changing communication parameters.

Error 22: "Unable to Continue, Not On-Line"
	This error occurs if you hit the F1 key to toggle between off-line 
and on-line. This key has no function if you are not connected to another PC.

Error 23: "No Modem Defined"
	This error occurs if you attempt to change any of the parameters 
within the configuration menu without a modem type being chosen. To remedy 
this problem, select your desired communication device.

Error 24: "Fax Board Cannot Utilize This Menu"
	This error occurs if you attempt to access the communication menu if 
you have chosen a fax board within the configuration menu.

Error 25: " Baud Rate Cannot Be Changed For Fax Board"
	The baud rate for the fax board is fixed. If you attempt to change 
it, you will get this error.

Error 26: "Drive Not Ready"
	This error occurs if you attempt to access the "A" or "B" drive when 
it is not ready. You should check to see if a disk exists within the desired 
drive, and that the door is shut if it is a 5.25 drive.

Error 27: "Point Does Not Have Any Attributes"
	This error occurs if you attempt to select the Attribute Menu while 
the pointer is your current tool.

Error 28: "Not Connected to Another PC"
	This error occurs if you attempt to change the status box in the 
communication menu. This box is of no use if you are not connected to another 
PC.

Error 29: "User Aborted The Receiving Of Data"
	This message is more informational than it is an error message. This 
message will let the user know that the system will discontinue receiving the 
data and that they are returning to the interactive mode.

Error 30: "Not Enough Disk Memory For Undo"
	This occurs when there is not enough disk space to hold the undo file. To remedy this, you must leave the program and delete any unnecessary files. This will create more disk space, which will provide the necessary space for the undo 
file.

Error 31: "User Aborted The printing of Data"
	This occurs when you hit the <ESC> key to abort a print that is 
currently in progress.

Error 32: "Document Queue Does Not Exist"
	This occurs if you hit the F6 key to toggle the queue. It simply 
tells you that no queue exists.

Error 33: "Printer Error - Not Connected or Not On"
	This occurs when you attempt to access the printer menu and the 
printer is either off-line or not turned on. You should check the power 
button and make sure the on-line light is on.

Error 34: "No Tablet Defined"
	This error occurs if you attempt to change any of the parameters 
within the configuration menu without a tablet being chosen. To remedy this 
problem, select your desired tablet size.

Error 35: "No Address Is Assigned"
	You cannot initialize a modem or tablet when the address value is 
zero. You must input an address value.

Error 36: "No Interrupt Number Is Assigned"
	You cannot initialize a modem or tablet when the interrupt value is 
zero. You must input an interrupt value.


Note: When displaying an error message, the memory needed to be allocated may 
      not be enough.  If this case occurs, you will be notified through 
      another error message saying so, as well as a message telling you that 
      the previous screen will be lost.  Thus, the program did not have enough 
      memory to save the previous screen as well as the data required for the 
      error message.  If this occurs, you would be advised to leave the "PC 
      Blackboard" program and check the available memory on your machine.

