Define your Win 7 Aero behavior before running any application
If you have compatibility problems between Aero and an application that you are running, or you want to all of your processor power is dedicated to your video game, disable Aero while running that application or video game:
1. right-click on the shortcut of your application or video game and choose Properties
2. click on Compatibility tab
3. at Settings, check the box for “Disable desktop composition” in order to disable Aero the next time you use the shortcut.
Windows will automatically disable Aero as soon as you start that application, and then re-enable it again once the application is closed.
Find other useful Windows Tips HERE.