Dear MacRumors geniuses, is my screen dead? These pixel pattern shave been showing up randomly, sometimes partly disappearing after i click a link, but mostly getting worst by the minute and making this very text I'm typing almost unreadable. I don't think my Powerbook G4 was hit or damaged in any way, and was never dropped, though I have experienced weird "light patches" on my screen for some time (known issue on those early PB's. Do I need to change my screen, or is any other kind of hardware dying on me? Help plz!!