I have a 12inch powerbook that came with panther installed and is currently running Tiger. I just recently noticed that I can't boot from cds.. I have tried my original panther cds, disk warrior, and other panther/tiger cds/dvds.. They all result in this funny looking apple logo: I've reset pram and also tried using my macbooks drive to boot from target disk mode.. All has resulted in that same logo. I'm wanting to just wipe the drive clean and start over. Any advice?