First of all, thank you for your answers and suggestions.
Update since the post:
I did a complete system restore to the day I upgraded to Win 7.
I took a screenshot and then compared pre-game processes and after.
I noticed 2 things:
1- audio.dg program was not running after the game
2- There were two svchost.exe extra running after the game.
I ended the 2 extra and this didn't work since I tried shutting down the PC and it wouldn;t.
I then went to device manager and clicked on "update drivers" for the video card. Device manager said I had the latest drivers. If I go to the Nvidia website, the update I get is: NVIDIA DRIVERS 258.96 WHQL
I haven't downloaded that yet.