I've came across a problem as of late with my G4 12" ibook. When the computer is on for a while and it starts to get a little warm, the mouse pad starts to freak out. I will move my fingure across the pad and the mouse starts to jump around the screen. I would have to tap the pad a few times and it will go back to regular. It is pissing me off more and more. Other than that its a great machine. I purchased the computer in december so I know a year has not pasted. Any ideas on what I shoud do.