One more thing you might want to try:

Tools>Internet Options>Security>Custom Level...under the listings, click "Enable" for stored and per-session Cookies if they aren't already. Close all the windows and your browser.

Then left click on Start and click "Explore"...click "Temporary Internet Files", hit CNTL+A to select all, and hit Delete (the "index" data file will remain). This should delete all the cookies in your cache. Also go to "Cookies" in Explorer and delete all those if any remain. It should give you a fresh run at the board.

Hope this helps--