hi everybody, i have a problem for a few days. my pc freezes after 20-30 min being idle or watching movie. hdd light goes red and it begin make a sound like reseting over and over again and after 5 minutes it unfreezes. i check my hdd with hdd regenerator and chkdsk but everything is fine till sth hit my mind. i boot my other os which is XP and in that os everything is fine and nothing happens. i find out that the problem is with my win 7. now what would you think or suggest ?