That's the latest officially released IE9 beta. There is a newer, leaked version. Not sure if you want to uninstall the older one and try that one out to see if it resolves or not. http://www.sevenforums.com/browsers-...ml#post1092240
And if you're done the newer beta flash install, post how it goes, if it's still the same results or not. Same for the newer 9.0.8027.6000 IE9 Beta. Not much else I could think of, except it being some bug or flawed interaction with IE9. Unless someone else has a clue.