If your W7 is 64-bit there should be (in the "All Programs" section) and option to run the 32-bit version of IE. Some stuff in the 64-bit version of IE is not that cleanly implemented (like for instance flash player), so it does not hurt to go 'native'. You could also try another web-browser (like Firefox, Opera, Chrome) to see if the problem is solved using that browser.
Personally I do not like IE...