OS X Lion keeps zooming in and out , cursor not controllable

Using a Macbook Pro OS X Lion, the track pad is mostly not responsive and teh screen keeps flashing, zooming in and out and not controllable. Any advice?

MacBook Pro, Mac OS X (10.7.5)

Posted on May 27, 2014 6:21 PM

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1 reply

May 30, 2014 11:06 AM in response to Realm313

Hello Realm313,


Thanks for using Apple Support Communities.


I understand that your trackpad is not responsive and you're seeing odd screen behavior. First things first, I'd like you to follow the tips and cleaning instructions in this article:


Portables and Magic Trackpad: Jumpy or erratic trackpad operation

http://support.apple.com/kb/TS1449


If you are still having issues after following the above article, please reset the SMC and NVRAM on your computer:


Intel-based Macs: Resetting the System Management Controller (SMC)

http://support.apple.com/kb/ht3964


About NVRAM and PRAM

http://support.apple.com/kb/HT1379


Take care,

Alex H.

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OS X Lion keeps zooming in and out , cursor not controllable

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