Ok, I have an iMac G5 1.9 isight model that is having some booting problems. The only way I can get the iMac to boot is when I boot it by putting my g3 in t-disk mode and using its hard drive. It won't boot through its own cd drive. Hard drive was blank. I booted into OF. Ran: Set-defaults, reset-nvram, reset-all. Still would not boot from CD. I reinstalled OSX onto it through the g3 by putting the g5 in t-disk mode. The install was prerfect and the g3 booted off the new install on the g5's HD. But, when I try to boot it on the g5; I get the apple/spinwheel then the circle with a bar through it where the apple is. It hangs there. Ran disk utility, verify and repair drive- Nothing changed- drive is OK I just want to mount this guy on the wall of my bar and access my other macs through front row. I would go as far as taping a firewire drive to the back to boot from. Please don't just say "logic board falure" It very well could be something on the board. But i can go deeper than that. Any other hints or tricks are very appreciated. I have been repairing G3 imac and ibooks and could do those blind. But I am stepping it up a little bit with this G5. Help me, I don't want to rig it!