I have my XFX 4890 flashed, and it works great in OS X. The problem is that I can't get it to recognize in Bootcamp. I am using bootcamp 3.1, but when i try to install the ATI bootcamp drivers/catalyst it won't let me because it says it can't find the components. Initially my device manager said my card was a vga enabled device with a yellow question mark, but I installed the windows xp drivers and now it recognizes it as a 4800 series card but still I can't boot from it or install catalyst. I have a macpro 1,1, OSX 10.6.3 I have been trying for days to get this working, please any help or advice would be greatly appreciated!