HI guys. I am in some deep trouble and cant find any solution anywhere. I just bought an HIS HD 6850 which i deeply regret as HIS i think will be the worst company ever. THe moment i play any game the system completely freezes and it blinks then the game star ts to run it runs for like another 6 seconds and then complete freeze again. this process keeps going on and on no matter what game i run. please advise. my system specs are Intel Pentium G620 Asus P8H61-M LX (mother board) 4GB DDR 3 Cooler Master Extreme 600w PSU HIS HD 6850 I tried to contact to HIS support center they replied after 2 days saying install windows 7 sp1 i even tried that and still no good and now i am not getting any further replies from their support center.