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From: reza0@ihlpl.UUCP (H. Reza Zarafshar)
Newsgroups: net.micro.att,net.micro.pc,net.micro
Subject: Video Problems on 6300... Help!!!!!!!
Message-ID: <532@ihlpl.UUCP>
Date: Sat, 25-Jan-86 08:25:54 EST
Article-I.D.: ihlpl.532
Posted: Sat Jan 25 08:25:54 1986
Date-Received: Sun, 26-Jan-86 04:22:53 EST
Distribution: net
Organization: AT&T Bell Laboratories
Lines: 20
Xref: watmath net.micro.att:849 net.micro.pc:6677 net.micro:13591

I am having a rather serious problem with my 6300.  Whenever I run a program
that causes a switch between various video modes, I get a screen full of
garbage. Clear screen, etc. won't work.  Machine is still alive but I am
put in such a weird mode, that is impossible to continue useful work and 
I have to push the reset button to get out of it.  
For instance: I invoke super key, every thing is fine.  Then I hit <ESC>
to get back to what I was doing before and I get nothing but garbage on
the screen.  Mind you, if I try to get back to superkey, things are still
ok.  Another place it happens is in Microsoft windows.  From DOS executive
I invoke dbaseIII, wordstar, crosstalk or the like.  The application comes
up fine.  I switch back to DOS executive fine, but as soon as I try to
return to my application, I get garbage on the screen consisting of 
thick vertical bars on.   The application is still alive and I
can still switch back to dos executive and even the screen in DOS executive
looks fine but my application screen is useless!!!

If anyone can give me any help, I would really appreciate it.
Reza Zarafshar
ihnp4!ihlpl!reza0
(312)979-5104