My cursor is going bananas.

It has a mind of it's own, it moves by itself, it clicks by itself, and it doesn't matter if I use the trackpad or a usb mouse. Any thoughts? Thanks.

MacBook Pro, Mac OS X (10.6.8)

Posted on Mar 30, 2012 5:13 PM

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34 replies

Mar 30, 2012 6:11 PM in response to nchaffet

I did find this article, not sure if you have seen it or not. http://support.apple.com/kb/TS1449


Also a good troubleshooting step is to test the mouse/trackpad in a new user since you already know it's not hardware after testing it in your Windows Boot Camp partition, if it doesn't happen in a new user then you might be able to isolate it to a trashable plist from your ~/Library/Preferences folder

Mar 30, 2012 6:17 PM in response to nchaffet

nchaffet wrote:


Sadly it happens with a mouse and the trackpad. I have my HD split so I also run windows on this computer. The problem does not occur on the windows side.


I reset the Pram, but that did not solve the problem. Thanks for the suggestion though.


Yes.....Pita this is. I'm in the middle of editing something on final cut to.

Not sure that this will help but, try turning tap to click off temporarily

Jul 2, 2012 7:58 PM in response to nchaffet

Just had this start up with my new MacBook Pro. However I was successful before when my old 17" Powerbook started doing that.


Trouble shooting and solutions in order that worked:

Followed cleaning instructions for trak pad and metal cover. That worked about twice.

Covered trakpad area with mylar or similar plastic (half of a sheet protector). Also worked for a while.

Took computer to a different room (you'll see why later). Plugged it in there and it worked for several days without a hitch.

Plugged computer charger into a different receptacle. This solved the problem. Old plug location was into a plug block. I expect that's the problem I'm having now with the new MacBook Pro.


Reason that I came to this solution: Found writeups about problems using third party chargers. While I definitely had an Apple charger, the idea that the electric signal was degraded or somehow affecting the performance made me trouble shoot the plug block. When plugged into the wall receptacle (without the plug block), problem was solved. Hope this helps if you have future issues.

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My cursor is going bananas.

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