You can go "My computer" and then go to the control panel and then internet options. You can delete temporary internet files there and also Clear history. Make sure you have your passwords wrote down if you clear your cookies from there. Put days to be kept in history at 0.
That should work but if not check this page here. If that address bar contents doesn't leave, I am not sure what version of explorer you have so use this page if other step doesn't clear that. You do need to delete temp internet files anyway.

http://support.microsoft.com/default.aspx?scid=http://support.microsoft.com:80/support/kb/articles/q157/7/29.asp&NoWebContent=1