[Dumpster Baby]

I would download it from here and re-install it.

http://www.microsoft.com/Downloads/details.aspx?familyid=9AE91EBE-3385-447C-8A30-081805B2F90B&displaylang=en

[Roses0508]

I agree, but I might add, that if any IE version is in your Add/Remove programs list, you should uninstall and then reboot.

Several of my customers have had IE issues of late (although most of them with IE8 after updates) and all have asked to revert to IE7. I keep another browser on the desktop just-in-case.