I just picked up these ibooks as parts from a local seller. All have issues. Three G4 Ibooks and two G3 Ibooks. No video at all on the 1.33ghz Ibook, it bongs on start up. Damaged screen(1/2 of it works) on the 1ghz G4, boots and runs fine. The third G4 is a 1.2ghz model, it bongs on start up and the screen lights up with nothing on it? The last two are G3's (500mhz & 600mhz) Both have video problems. If you squeeze them the video will stay on. I really want to get the G4's working if possible. Since the G3's have the video chip problem, I am hoping to swap their screens onto the G4's. I am going to start on the 1ghz Ibook as I know everything works on it. The screen is physically damaged, but the video is working fine. It would be nice to get two good working G4's out of this pile! Any thoughts on the G4 that lights up but does nothing??