Just started on me about 3 months ago, My monitor will flicker light and dark. Thats about the best way i can describe it, Doesnt do it all the time. If i leave pc down over night when i start back up it does it real bad everytime for about 15 minutes or so. It does it during games, internet sufing or just sitting here. I guess it goes from normal view to darker view. I can still see it just its aggrevating. My specs are Epox 9NDA3, AMD 3200 64bit, 1024 Corsair low latency pc3200 memory, PNY Nvidia 6800 Ultra, 500 watt powersupply. Thanks, Randy