first, i'm apologizing for being a computer idiot. okay, i just did a clean install of Windows 7. a few months ago, i had a new graphics card installed to allow me to play The Sims 3. everything worked fine, until I installed Windows 7. Now, in my device manager, I show two graphics cards: - Radeon X1300/X1550 Series (Microsoft Corporation WDDM) - Standard VGA Graphics Adapter. Both show up as fully updated with working drivers, and claim to be working properly. When I try to start Sims, it says my graphics card is not compatible with the game (which I assume means it's running off the standard graphics card rather than the one I installed a few months ago which played the game perfectly). I disabled The standard VGA, thinking it would use the Radeon card if the AVG were disabled, but it doesn't. My computer starts up, and works fine, and the screen display says I'm not currently using a graphics card (which confuses the hell out of me, because I thought I wouldn't be able to use the computer without one). I checked the Compatibility center, and they say it's compatible. So, my question is, How do i get my computer to use the Radeon card?