I downloaded IE 7 and my home page was highjacked and other spyware appeared - toolbar, etc. This all in spite of having Spy Sweeper and Kaspersky. In fact, Spy Sweeper became non-functional. It opened with a blank screen. I had to uninstall it. I also had to use "Hijack This". I have absolutely no luck with Microsoft's Betas.
did you download from the microsoft site or another site.