cpu specs: and 1.2 gig @266mhz, 256 pc2100 ddr-sdram 266, a7m266mobo, leadtek winfast geforce 2 ultra, sb live platinum, etc... everytime i try to run a graphical application which requires 3d acceleration the cpu crashes. This happens in 3dmark 2000 and 3dmark2001, i've tryed the det. 3 drivers, the manufacturer drivers, i've re-installed my amd761 miniport drivers for agp to pci bridge. i've tryed adjusting my agp aperture, none of this allows me to run anything for more than a a few seconds. I did check to see if there was irq sharing and discovered that my sound card and nic are sharing with my vid card. How do i change this? or if you think it could be anything else, please, i can use all the help i can get. thank you.