i have an alien ware with a pentium 4 and a radeon 64mddr video card and run xp. for what ever reason i cant figure out, my screen will go blank when i play wow and only wow. it can take up to an hour b4 it happens or just a min. i have to put my comp to sleep and that will sometimes get a pic back after my comp wakes back up other wise i have to reboot completly. it didnt to this when i first got the comp from a friend about 6months ago. its only just started doning it maybe bout 2 months ago. im lost on it and have no idea what i can do to fix.