As stated on the ATI site itself - the Radeon 9800 Pro has serious problems with AGPlinze wrote:If you have to turn off AGP with a Radeon 9800 Pro you have some serious system problems with your motherboard or video card.
I have a 9800 XT and run with all quality and graphics effects switched to high with no glitches whatsoever.
+ I run in 1600x1024 (its high enough for me anyway) with full detail
And have no problems, even with AGP turned off.