Here's a list of problems I'm having with the new W7 RC 64 bit & IE 8 ........ 1. CNN website won't show videos, works fine with Firefox. 2. CBS website video's won't enlarge to full screen, works fine with Firefox. 3. AVG wouldn't set up for me. Set up package wouldn't open up. 4. Avast A-V messed up my internet connection with Yahoo. Can't get on the internet untill I remove Avast and restore W7. 5. Nod 32 seems to be working but doesn't recognize my name and password and won't upgrade. 6. W7 doesn't shut down properly. It goes to the shut down page and stays there until I do a hard shut down. Other than the above problems, W7 RC has been working great for me, and seems to be rock solid.