Black Bar During Startup


I have an iMac 800ghz G4. During startup while there is the white screen and the grey apple a funky black bar appear. There's little pixels of blue and white in it.

I have tried Resetting the PRAM, starting up in Single-user mode, starting up in Verbose mode and running fsck. None of these work.

I have run the disk utility (the mac system disk) and Disk Warrior on it. Disk Warrior had fixed all other other problems (mostly with the volumes and somethings associated with OS9 (I have classic 9). It found a damaged folder icon, but it could not rebuild nor can I delete it. That was the only damaged thing that could not be rebuilt.

After running those applications, my mac is still doing the same thing. Any suggestions?