I am currently seeing the same issue. Played 2 hours of ArmA 2 at very high just fine 60 fps. Then I shut it off for dinner, when I go back to try an play it after dinner 15 fps, change setting to low 15 fps. Try another server 15 fps. Restart computer 15 fps. Give up go play another game 15 fps. Restart the computer again, try running the other game 60 fps. Try to play ArmA 2 again 15 fps, try to play others games 15 fps. So now when ever I plat ArmA 2 it locks my computer to 15 fps until I restart. I bought arma2 on steam. However I was still getting the "illegal copoes will downgrade chat message" and this bug feels like its part of the fuck up your game drm. Does any one know if their is something you have to do with steam to get arma2 to recognized that you have bought the game. Thank you for your recent purchase on Steam. If you’re new to Steam, install the free Steam application now: http://www.steampowered.com/getsteam To play your new games, just launch the Steam application on your computer and log in using your Steam account name:. Your games will be available in Steam on the “Library” tab. Any Downloadable Content (DLC) you've purchased is automatically downloaded and will be accessible from within the base game on Steam. To view your new DLC from within your Library, right-click on the base game and select “View Downloadable Content.” This email message will serve as your receipt. You can also access your Purchase History online at any time. Arma II: Combined Operations (NA) 29.99 USD Subtotal 29.99 USD Tax 0.00 USD Total 29.99 USD Payment Info PayPal 29.99 USD Confirmation Number Date Confirmed Sun Jul 29 11:11:45 2012