I really have no clue whats going on. It happens whenever im playing a game, the game with stall for 2 seconds every 7-10 seconds. I think *just* the game stops, but I cant really be sure. I underclocked my video and it didnt help, my cpu seems to be running fine. Nothing is really out of the ordinary when the game is running, it just happens. I thought it was a connection problem but my brother is on the same connection and he doesnt have the problem. Also, weird things like when im in the display options for windows, or the add/remove programs windows, theyll close randomly. They close after a few seconds of them being open. I really have no clue what to do. I reformatted, and everything was better, but it just went right back to the way it was. Any ideas would be appreciated.

Do a virus check and install adaware and run that too.

I had the exact same problem on my previous setup. It was my onboard LAN that was bad. I checked Event Log and found that I got an error everytime that happened saying something like "fatal error detected on Network Interface Card". So I disabled my onboard LAN and installed an addon NIC and it solved my problem.

Could you please tell me the Game, the connection type. Look its possible that after a format the situation improves as you endup wiping out the background processes which slow down the connection. Try an msconfig and revert with results...Its not GPU which is pulling it down..Its the back ground activity for sure.