I am running Win 7 Pro SP1, but this problem started before I upgraded to SP1. In my start menu, 64 bit IE8 opens and works just fine, but the 32 bit version does NOT run. Also, the Windows update choice on my menu does not run (Does that require the 32 bit version?). When I try to connect to the update via its website, it always refers me back to the start menu, so no help. Is there some registry key that got turned off? help!!