Question about Apple PowerBook G4 Mac Notebook

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Screen moves in reverse direction to curso

When using the trackpad on my G4 laptop, the screen moves about half a centimetre in the opposite direction to the cursor on initial trackpad input, and during any subsequent change in direction. Is this problem likely to be software or hardware related? This problem developed spontaneously about a month ago. I have recently updated to Leopard, same problem. I installed two-finge trackpad scrolling around a year ago, no problems, but wonder if it might be related to this?

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  • gconeill Mar 30, 2009

    I managed to fix the problem by using the Apple-F12 function key combination, which I found at this site. But thanks



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Go to the system preferences and look at the universal access, check to see if you have turned on the "seeing" section, if so turn it off, this might be the source of the problem

Posted on Feb 22, 2009

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Thank you, Krabby. I installed the security update 2009-001 last night and when I started up my macbook pro this morning I had the same problem gconeill desribed above. Your suggestion was the fix.

Posted on Mar 29, 2009


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Cleaning does not help, we had the same problem but in reverse, the keyboard worked fine but the trackpad would not, even the click...
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And if you do not have the warranty then i suggest you not to take it to a Apple store due to the extreme cost of a new screen on an old machine. Instead goto This site is great for anyone who has anything portable from Apple (including the non-portable MAC-mini) for replacement or upgrade parts, cheaper and also helps with the install (DIY instructions and pictures to go with it)

- Luke

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1 Answer

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This is a duplicate issue with a different title. Please only post one. Check the solution given to your other post. Thank You.

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