Mouse pointer jumping around the screen

Hi,

Is this a wired or wireless (Bluetooth) mouse?

If it's wired, try a different USB port.

If it's a Mighty Mouse, wired or wireless, go here. http://support.apple.com/kb/HT1537





Carolyn 🙂

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.






🙂

You're welcome. 🙂

Hi, it doesn't seem to be a problem with the external mouse. Ever since upgrading to Snow Leopard, this MacbookPro3,1 has had the same problem with trackpad. Sometimes it helps to restart but nowadays the pointer just keeps on juggling downwards the screen.

There are a few other threads about this. Hopefully there will be an fix for this soon?

I have the wireless mighty mouse and the cursor seems to jump around only when Time Machine is backing up wirelessly to my Time Capsule. I have not noticed it otherwise.

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?