Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!swrinde!cs.utexas.edu!oakhill!val!ben
From: ben@val.com (Ben Thornton)
Newsgroups: comp.os.msdos.apps
Subject: Re: Mouse Problems with Norton 5.0
Message-ID: <1991Jun20.155815.11114@val.com>
Date: 20 Jun 91 15:58:15 GMT
References: <1991Jun15.125740.3208@coral.bucknell.edu>
Organization: Video Associates Labs
Lines: 33

jbaker@coral.bucknell.edu writes:


>Hi there,

>I am currently using an Microsoft Bus Mouse, circa 1988, on
>my 386SX.  The driver (also circa 1988) works fine with WP 5.1
>and Windows 3.0, but with Norton 5.0 the whole screen starts glitching
>up, which is really annoying.  What is the problem?  Do I need
>a new driver?  I'm pretty lost so any help would be greatly 
>appreciated.  Thanks a lot!

>Jason
>jbaker@coral.bucknell.edu

Hmmm...  this is a long shot, but

If you are using a VGA (I'm not sure about behavior on other adapters)
Norton uses a graphical mouse cursor in a VGA *text* mode.  What this
means is that the mouse code in Norton is updating the font (resident)
in graphics memory) dynamically as you move the mouse cursor around
the screen.  This puts a rather heavy load on some VGA adapters,
depending on their memory speed, etc.  You might try just swapping
out your graphics adapter with a different model and see if the
behavior is the same.

Ben


-- 
Ben Thornton             packet:  wd5hls@wd5hls.ampr.org
Video Associates       Internet:  ben@val.com
Austin, TX                 uucp:  ...!cs.utexas.edu!val!ben