I'm having serious issues with my new 6800 ultra. My game crash (freeze) regularly. I have all the latest drivers. Should I have agp 3.0 calibration enabled in the bios? My graphics card is sharing IRQ with my motherboard firewire port and the soundcard firewire port. My soundcard has its own IRQ which is good I think. Can anyone help me with reassigning IRQ for firewire ports and or bios issues or anything for that matter. Im using nvidia 66.93 driver for my video card.