Hi, I am having issues with my Video Cards. I am Running Dual 256MB PNY Verto GeForce 8600GT cards running in SLi. When Playing World of Warcraft, or even using my Tv Tuner Program after about 3 or 4 hours my Screen will go all rainbowish, my screen will turn red, green, blue etc. Normaly ill restart my computer, or restart the application. I have updated my Drivers, Updated directX. here are my Specs.
Dual 256MB PNY Verto GeForce 8600GT Running in SLi
4GB of OZtech Ram
MB ECS NF650iSLIT-A Mother Board.
Windows XP Pro SP3
1.5TB Sata HDD
P4 with HT running at 2.93 GHz
TV TUNER KWORLD|PVRTV-PE360-A RT
Try single graphics card mode. Benchtest each card. Find the culprit and replace the card.
Check the card's temperatures under stress. Increase the fan speed with Rivatuner if necessary.
Tell us about your power supply.
Software reinstall may be in order.