Have you ticked "Ignore accidental trackpad input" in System Preferences>Keyboard & Mouse>Trackpad? Jon On Sep 29, 2005, at 12:32:00 -0700, Robert Ashton <rashton at telus.net> wrote: > Any one using a ibook that is having trackpads jumping all over. > Formatted the hard drive, and installed 10.3 cursor jumped all over > so then upgraded to 10.4. Still the same problem. I believe that it > is software as it seems to work fine sometimes and then seems to > screw up. Thanks in Advance Bob