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Mouse pointer jumping around the screen

My mouse pointer has just started jumping around the screen. It vibrates and slowly moves down the screen even if I am not touching it. I have cleaned the sensor but that has not helped. I unplugged it and the pointer still jumped around.

Any ideas what might be causing this as I have not seen quite this problem on other discussions.

Imac 2.4, Mac OS X (10.5.8), New Feb 08

Posted on Aug 24, 2009 3:12 AM

Reply
8 replies

Aug 24, 2009 3:55 AM in response to nzduke

HI,

That's interesting... restart your iMac. See if that makes a difference.

Also, do you have anything nearby that might cause interference, like a cell phone or graphics tablet?

May sound crazy, but dust and lint build up on a mouse pad can cause erratic cursor behavior.

You could try deleting this file.

com.apple.driver.AppleHIDMouse.plist

/Users/YourName/Library/Preferences. Drag that file to the Trash, empty the Trash and restart your iMac.






🙂

Oct 9, 2009 11:10 AM in response to nzduke

I just bought a new Mac Pro with Snow Leopard installed. The mouse pointer does not track smoothly. It will lag and then jump, so I'll very often miss the intended spot. I've tried it with the optical Might Mouse and a Microsoft laser mouse 6000 (both wired). I've tried different materials for the mousing surface, but none improved the tracking. Neither of these mouse have issues when used with my MacBook Pro (running Leopard). I'm wondering if this is a Snow Leopard problem. Anyone any ideas?

Mouse pointer jumping around the screen

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