didnt receive :(can you resend to susheng25@gmail.com? I think stupid hotmail reject it coz it's large. thank you. for me, if i go into a blue screen, it's DRIVER_IRQ_NOT_EQUAL_OR_LESSTHAN, and this is because i oc too much for system, i still think it's a system problem, coz if you dunt oc much, you wont get this kind of error, it causes system unstable. I learnt lots people have this random crash problem, especailly when they play warcraft 3, so i guess some 3d game stress the system with a high-burst heavy load of floating point caculation, it's so strict that system cannot handle it in an oc stage...