If you have I.E. 7.0 do this..
1. In your Internet Explorer Browser,
> Click Tools
> Click Internet Options
> Click Delete on Browsing History Section
> Click OK

If you have I.E. 6.0 do this
2. In your Internet Explorer Browser,
> Click Tools
> Click Internet Options
> Click Delete Cookies, Delete Files on Temporary
Internet Files Section
> Hit OK.

hope this works.. Good luck..