I know this is an old topic, but I just wanted to give an update. Reinstalling Windows completely did not change the situation. It still comes up with the exact same message. Is there anyone else getting this message after installing a new video card? I've tried various drivers, but nothing seems to help. I know it's not the most important test, but it bothers me that it won't work.
By the way, I got Aero working with the most recent driver update. WEI is now the only problem.