Hi all, I have a beloved iBook G4 A1055 that I bought secondhand several years ago. Never had a single problem until this evening: upon startup, I got to the grey apple screen, and the spinning progress wheel froze. I turned it off and back on again. Now the screen comes on with a splotchy dark grey cloudiness, which eventually turns to a bright white and just sits. I still get the melodic chime on startup and the hard drive spins up as usual. Been searching for hours as to what could be the cause of this, was wondering if you guys had any tips?