The game will enter windowed mode without any user input at random intervals. I can be in the start-up menu not even touching my keyboard/mouse and the game will do this.
This is a very perplexing problem because I cannot find any information on the web.
The worst part is that not all games do this making it harder to diagnose.
Battlefield Bad Company 2 beta does this.
Company of Heroes Gold does it and Shattered Horizon does it. COD:MW2 does not, GTA 4 does not and Saints Row 2 do not.
Stuff running in the background:
Steam (for MW2 and shattered horizon)
Windows 7 Professional 64bit
GTX 275 @ 700/1512/1300
Intel E2200 @2.8GHz
Onboard Realtek LAN and Audio
500GB WD Blue
I can post a dxdiag but is there an easy way to do it without taking up a ton of space?
Any ideas as to the cause?