Mouse on AT&T 6300 ?

[Daniel Elvis Weber]

This is in regards to the note posted earlier concerning having problems
getting the mouse to work on the AT&T PC6300.  Unfortunately, I have the 
same problem and not the solution.  I am posting this to provide more 
particulars about the behaviour of the mouse driver in the hope that it 
might provide somebody with some clues as to what might be going wrong.

If a solution has already been determined, but e-mailed to the original
author, could you either post the fix or send me mail?  (Ah yes!  That
famous phrase: "Once you get a solution can you e-mail to me too?  Me
too?" :-) )  Also, just to be fair, this message will be cross-posted to
other groups if no answer has been forthcoming in a week.

				Thank you,
				Daniel E. Weber
				weber at cs.uiuc.edu

THE SOFTWARE:
MS-DOS v 2.11 Copyright 1981,82,83 Microsoft Corp.  (Command v 2.11)
Microsoft (R) Mouse Driver v 6.26
	Copyright (C) Microsoft Corp. 1983-1989

THE HARDWARE:
AT&T PC6300:
	640K RAM
	20Mb Hard drive
	1 360K Floppy (internal)
	1 Serial Port (COM1)
	1 Parallel Port
Add-ons (concerning this problem):
	1 Serial Port courtesy DAK.  (Supposedly COM2)
	1 Logitech Mouse - Model No. MB (82-9F ?)

THE PROBLEM(S):
Problem 1)
The Microsoft Mouse Driver does not appear to recognize a mouse attached to
the mouse port on the keyboard of the AT&T PC6300.  The error message
displayed is: "Driver not installed - Microsoft Mouse not found!"  However,
when the mouse is attached to the built in serial port (COM1) it *is* 
recognized.  This makes using a mouse frustrating if one has other devices 
that need to use the serial port (e.g. a modem) because one has to disconnect 
whatever device is currently attached and replace it with the mouse.  Several
sessions of this kind of swapping prove to be tedious.

Also, the diagnostics program that came with MS-DOS when the machine was
purchased claims that the mouse, when attached to the keyboard, *is* attached
and working, even though it is obvious that all of the tests it performs fail.  

Problem 2)
When the mouse was purchased, it came with an add-on card that was to
provide an extra RS-232 serial port: COM2.  The card has yet to work
correctly, and when questioned about the installation procedure, the people
at DAK industries couldn't tell me what the correct settings for the dip
switches were!  (In fact, one gentleman in "Technical Support/Hardware
Support" didn't even know what a dip switch was!  I don't mean to slam
them, but I've never received poorer service in my life.)  I've already
tried setting all of the various COM2 settings described in the MS-DOS
manual with no luck.  However, I haven't tried all 256x(#settings) 
combinations of the dip switches and COM2.  (ICK!)

HELP????
If somebody knows what needs to be done to get the keyboard to recognize the
mouse, please let me know.  If, as an aside, somebody knows what might be
going on with the add-on card, that would be nice too.  If further information
is needed, please be specific about what you need to know, and I'll try
everything short of beating the motherboard with a wrench to get it.