Is browsing always slow in Internet Explorer? Does it frequently stop responding (hang), or stop working (crash)? Do you receive error messages that indicate that Internet Explorer has "encountered a problem and needs to close"?
If so, then you might want to try resetting Internet Explorer. When you reset Internet Explorer settings, all add-ons and customizations are deleted, and you basically start with a fresh version of Internet Explorer. This article helps you reset Internet Explorer.
http://support.microsoft.com/kb/923737
Contact a professional to help you:
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