This is really wierd. If anyone can point me in the right direction I'd appreciate it. I installed a firewire external 500 gig drive to my old G4. I then used Superduper to clone the old 30 gig IDE boot drive to the new 500 gig drive. I set the startup disk to boot from the new 500 gig drive, restarted, and Viola! She started up right from the 500 gig drive. When I removed the old IDE drive and rebooted, she would not boot!!! The machine seems to need the old IDE drive connected even tho its set to boot from the external drive. What went wrong? How come it wont boot with just the External drive connected? Its an exact copy of the old IDe boot drive??? Anybody have any ideas? thanks in advance for the help.