Resetting Browser Cache and Deleting Cookies with IE8
Cleaning out your cache and deleting cookies might help with login trouble or if the gallery images aren't updating for you.
Click on tools on your toolbar.
Click on Internet Options from the drop down menu.
Another menu will appear.
Under Browser History, check the box that will delete browsing history after exit.
Click on delete.
On the next screen, check to delete history, cookies and temporary passwords.