I've only had the cursor-gone-wild issue once, on a 2001 iMac, and it was the first hint that the logic board was dying. Hope that's not the case for you.
Alex On Wed, Jan 10, 2018 at 12:22 PM, Harry Jacobson-Beyer <[email protected]> wrote: > Several days ago I went to log on to my account on my computer, which is > always on, and the cursor was moving all around the log on screen by > itself. It was as if somebody else was controlling the cursor. I forced the > computer to shut down by holding in the power button. I waited a while and > turned it back on. Same thing. I turned the mouse off and the cursor > eventually stopped moving. I turned the mouse back on and it started moving > by itself again. I shut the computer down. > > I went about my business and later that afternoon I turned my mouse off > and restarted the computer. After it booted up I logged in (you don’t need > a mouse to do that) and then turned my mouse on and once the computer > recognized the mouse the cursor started moving by itself. I had to force > the computer to shut down. I turned off my mouse and got my wife’s mouse > (both are apple bluetooth mice), turned it on and rebooted the computer. I > logged in to my account and it took the computer a long long time to > connect to my wife’s mouse. Once it did, the cursor again started moving > all by itself. It was really weird. I called TechRestore and told them > about the problem and said I would bring in the computer the next day. The > technician said I should reset my p-ram before I before I bring in the > computer, as that might solve the problem. > > I did and the problem was resolved. Yeah TechRestore! > > I had turned off both my mouse and my wife’s. After restarting the > computer I turned on my mouse and it took a really, really long time (±5 > minutes although it seemed like much longer) for the computer to discover > and connect to my mouse. > > It’s been working fine ever since resetting the P-Ram. > > Here’s how you do that! > > With the computer turned off hold down the command, option, p, and > r keys and turn the computer back on. It will chime, go dark, chime go > dark, and chime once again before restarting. > > The Technician had told me it would only chime twice but, as I said above > it chimed 3 times. > > Thanks TechRestore > > Anybody have any idea why the cursor would start moving around by itself > and why did resetting the P-Ram correct the problem? > > Thanks. > _______________________________________________ > MacGroup mailing list > Posting address: [email protected] > Archive: > <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.mail-2Darchive.com_macgroup-40erdos.math.louisville.edu_&d=DwIFaQ&c=OAG1LQNACBDguGvBeNj18Swhr9TMTjS-x4O_KuapPgY&r=F2GFXrjLFqVo3VwvIlo_XYeEiRRjHv15rxcenz7A21woG2aFGcrzndoSsskxfmOs&m=x9okHJuGY-ktrvGwmfCdhz-x5WLY_GC4U2VmeCxNzFE&s=Sg6rs3Pr4j3pB4mfzgcWMNiNgzP6hMLyb4q4o0zBTm4&e=> > Answers to questions: <http://erdos.math.louisville.edu/macgroup/>
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