Its an interupt problem. Switch the jumper on the mouse card
from 5 to 2 and all works
Well most of the time
According to the Microsoft Mouse documentation, the board is plug and
go...just stick it in and it works.
In looking at the Microsoft Mouse card, Rev C, there are two jumper
locations. The first, called J3 is a soldered jumper with labels of
15, 30, 60, and 120, with the jumper for 30 closed. This is probably
for the communications rate and corresponding to 150, 300, 600, and
1200 baud respectively. The board has another jumper with a berg
connector on 5. The jumper block is labelled 2,3,4,5. Of course, the
Microsoft documentation does not mention the connector or the jumpers
at any time in the documentation.
I have not yet moved the jumper over. It seems safer to make an
attempt to find out from Microsoft what the purpose of the jumpers
are. If that doesn't work, then I'll play.
-- David Gewirtz
1. The switch of the jumper from 5 to 2 is as a result of
talking with microsoft.
2. If you generate to the xt and then do a DOS backup, guess what. You
can RESTORE to any xt anywhere.
Dave
I have encountered similar problems with the Microsoft Mouse and
Microsoft Word. I have a vanilla IBM PC XT with the Microsoft Mouse
card.
I have found that I am unable to perform a warm boot after loading the
mouse driver from Microsoft. Steve Kirsch's Mouse Systems PC/MOUSE
software and mouse driver do not exhibit the warm boot problem and
work quite well.
I would have expected that the folks who wrote the operating system
would have been able to make their mouse work with their own device
driver facilities, but... And what happened to quality control?
David Gewirtz