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From: ericf@zurich.ai.mit.edu (Eric Feigenson)
Newsgroups: comp.sys.mac.hardware,comp.sys.mac.system
Subject: Mouse problem
Message-ID: <ERICF.90Aug29192220@montreux.ai.mit.edu>
Date: 29 Aug 90 23:22:20 GMT
Sender: news@ai.mit.edu
Reply-To: ericf@zurich.ai.mit.edu
Organization: M.I.T. Artificial Intelligence Lab.
Lines: 21

I'm having a peculiar problem on my Mac IIcx.  All of a sudden, when I
move my mouse, the cursor tends to jump around on the screen.  It
doesn't jump very far, but it does sometimes jump towards the top of
the screen when I move the mouse so that the cursor should be moving
to the *bottom* of the screen.  I first suspected a virus, and I have
Gatekeeper and Gatekeeper Aid loaded, so I thought I was safe (I have
the latest versions of both except that I have GA 1.0.1 because I
suddenly suffered several system crashes with 1.0.2).  To be sure, I
ran Disinfectant 2.1, which found nothing.  I rebuilt the desktop, and
even rebooted from a locked floppy.  In all cases, I have the same
problem.  I'm fairly certain that it's not a virus, and that leaves a
"hardware problem".  Has anyone else encountered this problem before?
Is my mouse on its last legs (it's only a year old!).

Any help, suggestions, condolences will be appreciated.  Please
respond via email.

Thanks!

-Eric Feigenson
ericf@zurich.ai.mit.edu