Path: utzoo!mnetor!uunet!lll-winken!lll-lcc!gp
From: gp@lll-lcc.aRpA (George Pavel)
Newsgroups: comp.sys.mac
Subject: Cursor only moves vertically.  Why?
Message-ID: <1624@lll-lcc.aRpA>
Date: 20 Apr 88 19:32:04 GMT
Organization: Lawrence Livermore Labs, Livermore Ca
Lines: 25

Recently I experienced a crash on my Mac Plus with System 4.1 and Finder 5.3.
After rebooting, the cursor would only respond to vertical movements of the
mouse ( not a very useful situation).  Thinking that I had somehow munged my
System, I took the opportunity to upgrade to System 4.2 and Finder 6.0.  The
same thing happened.  I replaced the Finder and the Mouse cdev with fresh copies
and it seemed to cure it, but a later reboot showed that the problem reoccurred.
Further experimentation shows that this vertical-only mode happens on most
reboots but not all; if I try long enough, I get full cursor control.  Moving
the mouse around while the Mac is rebooting may or may not help; it's hard to
tell.  I haven't tried eliminating INITs yet to see if one of them might be
causing it.  When this first occurred, I hadn't made any changes to the system
for about a month.  Does anyone have any idea where I can look for the problem?

(I have a lot of stuff in the System Folder: SoundInit, A ScrapSaver, BeepInit,
Boot Logger, CheapBeep, CPS TagFix, CPSSaveDeletes, Autoblack, Macsbug,
Findswell, JClock31patched (which has never caused me any problems, yet), mind,
New Rom Sys Alert, Randomizer, SCSI Bus CDEV, SFScrollInit, ShutDownSoundInit,
Softtalk, Suitcase, Tops, PopKeys.  As I said before, all this was unchanged
for at least a month, during which I had to reboot several times without a
problem.)

George Pavel
Lawrence Livermore National Laboratory
P.O. Box 808  L-68				(was gp@lll-lcc.arpa)
Livermore, CA 94550			Internet: gp@lll-lcc.llnl.gov
(415)422-4262				UUCP: ihnp4!lll-lcc!gp