Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!utgpu!water!watmath!clyde!rutgers!topaz.rutgers.edu!wchao
From: wchao@topaz.rutgers.edu.UUCP
Newsgroups: comp.sys.tandy
Subject: Problem with program in 10/87 80-MICRO
Message-ID: <16281@topaz.rutgers.edu>
Date: Thu, 5-Nov-87 17:27:25 EST
Article-I.D.: topaz.16281
Posted: Thu Nov  5 17:27:25 1987
Date-Received: Sun, 8-Nov-87 09:08:53 EST
Organization: Rutgers Univ., New Brunswick, N.J.
Lines: 19


   Hello folks.  Before I get to my problem, I just want to say
that I will be cancelling my subscription to 80-MICRO starting
January, 88 so please don't get on my case.
   Here is the problem: I just managed to type in a program
which appeared in the October issue called CRTSAV/FLT.  This
program is a filter for TRSDOS 6.x/LS-DOS 6.3 which will
blank out the video screen after 3 minutes of inactivity. Afterwards,
if anything gets displayed again(like hitting a character key), it 
is suppose to restore the screen.  Everything works OK until the
screen is restored, now the cursor disappears and the computer
locks-up.  
    Since I am not an assembly programmer, any help on this would
be greatly appreciated.  If you have a screen filter like this one
which is installed to the *DO device, please let me know.
Thanks.

William Chao
wchao@topaz.rutgers.edu