Reset your IE Settings and improve performance
From time to time I’ve used some IE features to delete certain settings or data. But IE became slower and slower and finally even opened pull down menus on Outlook WebApp and other things.
Now I went to
http://windows.microsoft.com/en-us/windows-vista/Reset-Internet-Explorer-8-settings
and executed the manual and afterwards the automatic reset of IE settings on my Win7 notebook and what a surprise, now everything works fine again and even IE performance is back again.