Ok well 1st time here and 1st time i have needed help to sovle an issue i cant seem to solve! my specs of my pc are as followed : Q6600 running at 3.30ghz, 4 gig ram, radeon 4800hd series, cooling = watercooled. power supply is top notch. also running Windows 7 64bit. Ok my problems have just started to come back, awhile ago when i used to play World of warcraft i had crashes everytime i loaded the game up these crashes would lock out my system, i had to turn it off by holding my powerbutton :/. i finally got around it after fully updating my system drivers ( my g-card ) mainly was casuing the problem. so 8 months later, im stuck in the same boat all my system is up to date, all of the windows patches are installed and downloaded graphics are up to date etc, but i seem to be getting my system hang ups when im playing games, i cant play any BFBC2, WoW, Left 4 dead, or anything, i can sit on the internet on the desktop for hours it seems to be when ever i try and play a "game" i get my system crashes. I recently downloaded some window updates 3-4 days ago so ive gone back through and unistalled the updates i downloaded and installed but with still no luck, i have even gone ATi's website and downloaded the drivers from there. Any help or ideas why this is happening would be great, anotehr thing when i go into my event viewer i get this : Critical, "Source Kernel-Power" Event ID 41 Task Category (63) The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly. presumming this is caused as i switch it off by the power button?