I recently upgraded my Gigabyte GeForce 5700 Ultra 128MB to a Gigabyte GeForce 6800 GT 256MB. It consistently goes into pause mode. I'll be playing or running a benchmark, and suddenly the screen will pause and the sound will stutter and/or repeat for 1-2 seconds then stop. The whole system is at a standstill for about 4-5 seconds, and then it resumes like there is nothing wrong. I did a search on Google and found many GeForce 6800 GT & Ultra Owners were livid about similar problems. I am running a Gigabyte K8NS Pro with the latest bios which is F8. It has a NForce 3 250 chipset and I am running latest 5.10 drivers for the chipset. I am also running latest 66.93 WHQL drivers for the video card. Very very Annoying.