I have an A7M266 Mobo and I am having video lockups when I am gaming, on the board I have a GF4 ti4600 video card. Today I stuck in a GF2 MX PCI video card and had no lockups, also I know the GF4 card is good because I stuck it in another machine and had no problems. Are there any known issues with the A7M266 mobo's and the AGP slot on it?