bc@njitsc1.UUCP (03/31/87)
I recently upgraded from DOS 3.1 to DOS 3.2 on my IBM AT (one of the early ones).
I hav ethe Sigma Designs Color 400 display adaptor (ver 2.28) which uses the
NMI interupt to help process certain CGA emulations.
They included a small program to turn off the interupt processing if it
interfered with other things in the machine. It didn't need to use this
program until I installed DOS 3.2.
(BTW, it took many hours to find this. I finally realized it was dying when the
screen filled up and it hung trying to scroll.)
Has anyone else run into similar NMI processing problems/changes with DOS 3.2?
Bill Cheswick uucp: bellcore!argus!njitsc1!bc
New Jersey Inst. of Tech. ARPA: argus!njitsc1!bc@flash.bellcore.com
bitnet: bc%argus.uucp at mouton.arpa