I have a MDD 1.25 DP with a Mac version GeForce4 Ti 4600. At least I think it’s the Mac version; it’s the really long one. Anyway, I can only boot in safe mode. If I boot into OS 9.2.2, I get a blank blue screen. If I boot into OS X (10.4.11) it looks good but then I get an infinitely spinning beachball. When I replace the video card with some NVidia 32MB ADC/DVI card, it boots normally.
Other troubleshooting I’ve tried includes zapping the PRAM, replacing all RAM with new ones from OWC, trying different hard drives and reinstalling the OS.
I hope it’s a driver issue rather than a hardware failure. I just found this site so I’ll try reinstalling drivers. Any other suggestions for further testing?
Thanks!