I had the x800xt installed for two days. It seemed to work well until I installed the latest Bios extender and the ATI Display Panel (version 4.5). Now my system won’t boot. I can’t even get the DVD to boot with the 800xt board in my system. When I put the orginal ATI 9600xt board back into my mac the system works fine. I’m waiting for Tiger and will format my hard drive and try again. A word to the wise….DON’T load any of the ATI Updates for the X800XT board.
Bob M