Hey. I'm experiencing a few problems with my Powerbook, but I'll post one problem for now. I got my Powerbook G4 DVI 667Mhz off eBay a couple of days ago. This problem is that the screen is black during the first part of startup, at the phase were you should see the firmware stuff, or the BIOS display. I'm not sure what this stage is on the Mac. Anyways, the screen is black for about 30 seconds when it finally comes on when the OS loading screen appears. The chime does come on at the start, other than that you would have no idea it was on. Any ideas? Thanks guys.