Start menu items don't expand after IE9 beta update

After I updated my Internet Explorer 9 Beta, the items in my Start menu are no longer expandable and I cannot click on them. I am not refering to the All Programs, but the items in the blue bar such as Documents, Favorites, Recent Items etc. Clicking on the main item (ex: Favorites) will list my favorites and folders, but I cannot click on any of them or expand the items inside. Oddly enough, I can expand and click on Favorites from within IE9.

A shutdown, restart, disk check have all failed to fix the problem. As I stated, this started immediately after I did the latest update to my IE9 Beta dated 15 Feb 2011.

Any suggestions or perhaps registry fix I need to look into? Any help is greatly appreciated.

Thanks!

Oddly enough, after running another disk check and a restart, now things appear to be normal again. Strange why that didn't work the first time...

Unless it happens again, I don't think I will need any answers. Thanks anyway all!