Hello, im quite new to this forum so please be patient with me...... Im decently tech suavy, able to do my own hardware and software upgrades and identify some problems, but still learning. My computer is just over a year old, and it began acting up nearly a month ago... The problem occurs during gameplay. I only currently have 2 games on my computer, WoW and CoD4MW2, and during both games, and no given specific time, the computer freezes, and the monitor loses signal. I have recently noticed that during this freeze, I still receive audio, which makes me think it has something to do with the video card. My specs are as follows Processor: Intel Core2 Quad CPU Q8200 @2.33GHz Ram: 4GB 64 bit Operating system running on Windows Vista w/ service pack 1 I have a newly installed PSU (about 5 months old) running at 1200 amps (i believe) And a GeForce GTX9800 Video card, installed around the same time as the PSU. If you could help me with my situation in any way it would be greaty appreciated.