I have been playing the Battlefield 3 Beta on Windows 7 Bootcamp on my 21.5 inch 2.7 GHz iMac. Surprisingly, it runs very well at 1080p on high settings. The problem is that before I open the game, it tells me that I have AMD 11.1 and I need to update the video card drivers to at least 11.7. I cannot find the update on the AMD support page. The ones I have found will not install.