not sure what is wrong exactly...
ok i'v had this problem for awhile now, my computer will freeze up during gameplay after playing for awhile. i have replaced video cards, i have run diagnostics on ram, i have fiddled with the refresh rate, it's been awhile since i tried fixing it so i dont quit remember weverthing i have tried, but i have looked all over anyone who has had the same problem has fixed it doing things i have already tried. if anyone can help me or even give me a your own guess at whats wrong i can probably work with it.
512mb ati video card (replaced a 128mb did'nt fix problem)
1gig of ram
200gig HD (i have recently wiped computer HD so it cant be internal unless i am missing somehting i didnt have befor either)
one more thing; my computer only started doing this after about a year of gaming and it only hapens when i play video card intensive programs (games) thanks ahead of time and sorry this was so long.