I have an ASRock 775Dual-VSTA motherboard. I installed a BFG GeForce 7900GS OC card and have been having game problems. When I contacted an ASRock support tech, he said that the GPU was not supported by the motherboard. I looked at the list and the NVIDIA 7900GS is on it. I figured maybe since the card is overclocked, that's why it doesn't work correctly. Is there a way to un-overclock it. Help please!