Whenever you post a question about Internet Explorer we need to know
what version of Windows you have (including the service pack.)
Since you provided no information to help diagnose your problem, the
best thing to do is start the standard troubleshooting:
Problems can result when add-ons you have installed, such as browser
toolbars, are damaged or conflict with Internet Explorer.
Run Internet Explorer 7 in 'No Add-Ons' mode:
If you have Vista: Start > type Internet Explorer in the Start Search
box > click Internet Explorer (No Add-Ons)
If you have XP: Start > All Programs > Accessories > System Tools >
Internet Explorer (No Add-Ons)
Alternatively, you can create a shortcut on your desktop with the
following target path:
"C:\Program Files\Internet Explorer\iexplore.exe" -extoff
If the problem does not occur in 'No Add-Ons' mode, then it's being
caused by one of the add-ons that you have installed. We can show you
how to identify which add-on is causing the problem.
Problems with Internet Explorer can also be caused by by malicious
software ('malware') that has been installed on your computer.