IE7 Addressing Problem

When ever I type an address into the address space IE hangs.
When I go from Favorites it works fine, or if I put an address in and then depress ALT/ENTER it will go to a TAB Window.

THIS JUST HAPPEN AND HASN"T BEEN RIGHT SINCE.

I removed IE7, and via Netscape loaded a new version and still the same problem.

Any help will be appreciated.

Thank you;

Tom Borkowski