Here's the page from Microsoft about how to clear your cache -
http://www.microsoft.com/windows/ie/...learcache.mspx

more about IE 8 -
http://www.microsoft.com/windows/int...r/default.aspx

IE 7 -
http://www.microsoft.com/windows/internet-explorer/ie7/

Internet Explorer browser settings-
[The information in this Help topic applies to Windows Internet Explorer 7 and Windows Internet Explorer 8.

To help protect your privacy, your computer's security, or to make Internet Explorer work the way you want it to, you can change settings and preferences. Below are some helpful links for changing settings in Internet Explorer.]
http://windowshelp.microsoft.com/Win...7de9e1033.mspx

A reboot after making changes might be a good idea too.

if those don't help then we look at clearing the cookies, but those remove passwords and log in info so you have to have them written down & saved somewhere else - before we try that option.