yea I RMAed my board because of it. i have since tested the card on 4 other computers. they all worked fine except for my ax4c. I got irritated and decided to switch to ATI. the x800 pro didnt come for me yet but as far as I know the newer generation cards only have 2 cuts on the agp interface instead of 3 on the older cards. maybe thats the problem. Any way if the ATI doenst work either im going to have to get a new motherboard.