hey, i have a samsung 22"ws and an 850xt. 1 gig of ram and an old xp3200. Every time I watch a movie in powerdvd or media player i can get some of the way through it and then the monitor goes blank and it acts like the cable is not even hooked up. After that I have to reset. Atitool temps are fine throughout on vid card and mobo temps are good as well. I was just wondering if anyone may have a suggestion at to what it may be. Thanks.