I just picked up another ibook that was going cheap, wanted it for spares for my other ibook g4 in case anything packs up. The problem i have with both ibooks is that they start up and shut down fine, operate brilliantly but they will not restart. When i try this i get the question mark symbol indicating that there is no harddrive present. When i force quit the machine and then fire them up they work fine, just are unable to restart. Anyone else have this problem as it seems a bit coincidental that they both do this. They work fine and are great little workhorses just wont restart?