I have an iBook G4 that won't boot. I got the flashing question mark/folder. Strange this is, the hard drive is not broken. If I boot off a CD and run Disk Utility, I can see the hard drive. If I boot it up holding the T key down to put it in transfer mode, and connect it via Firewire to another Mac, I can see the iBook's files. So the hard drive is functioning and all the files seem to be there. It just won't boot. How do I fix this? I tried Disk Utility and did all its repair options and permissions repairs and it still won't boot.