I have a Powerbook G4 model A1046 and the hard drive is completely dying. I've even tried to reinstall the OS using command S on start up but in the command area it keeps giving me IODATAController device blocking bus..... which obviously means the hard drive is dead. Is there a way I can just throw in a new hard drive and install the OS with out the cd restore disk? I've totally tried finding them online as well with absolutely no luck. PLEASE SOMEONE HELP!!!!