Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!ucla-cs!ucla-se!watson!weiss
From: weiss@watson.seas.ucla.edu (Michael Weiss)
Newsgroups: comp.sys.mac.misc
Subject: Re: Shaky Mouse
Message-ID: <2560@lee.SEAS.UCLA.EDU>
Date: 25 Apr 91 23:36:10 GMT
References: <51763@nigel.ee.udel.edu> <1991Apr24.230313.18807@dartvax.dartmouth.edu>
Sender: news@SEAS.UCLA.EDU
Organization: SEASnet, University of California, Los Angeles
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In article <1991Apr24.230313.18807@dartvax.dartmouth.edu> rsvp@eleazar.dartmouth.edu (R. Scott V. Paterson) writes:
>My mouse has suddenly become rather shaky.  I notice when I track
>downward, my mouse will jump up about 1/4" at irregular intervals.

Sounds to me like one of two possibilities:
   1)  You've got dirt on the rollers
       Take out the mouse ball and clean off the crud from the little
       rollers inside the mouse.  You'd be surprised how much mouse
       movement improves after that.
   2)  Bad contacts/sensors
       This one is a bit tougher.  If you're no longer under warranty and
       want to risk it, you can unscrew the case on the mouse, and look
       around inside.  Sometimes dust/dirt gets into the toothed wheel of
       the optically-driven mouse, or in the metal wheel of the contact-
       driven mouse.  You can clean it with some sort of REALLY small
       tool.
Hope this helps.