incompatible or defective Internet Explorer add-ons might be interfering with the website. If you turn these add-ons off, you might be able to view websites again. To automatically disable a list of known incompatible add-ons, run the Internet Explorer Add-on Fix it. When asked whether you want to run or save the file, click Run, and then follow the steps in the wizard.
Fix this problem
Internet Explorer freezes or crashes
If running the Fix it above did not resolve your issue, changes to your Internet Explorer options might prevent you from viewing your email website. You can reset Internet Explorer to its original settings to remove any changes to Internet Explorer without deleting your favorites or feeds. To automatically reset Internet Explorer settings, run the Reset Internet Explorer Settings Fix it. When asked whether you want to run or save the file, click Run, and then follow the steps in the wizard.
http://support.microsoft.com/kb/2483955