Reading http://answers.microsoft.com/en-us/ie/forum/ie8-windows_other/does-symanticnorton-antivirus-interfere-with/9cb6ea1a-7706-4187-9345-07a68e55cef0 and other discussions there, it looks like some see this issue.
Did you try Chrome?
I have Windows XP and recently upgraded to Internet Explorer 8 and now everything loads so slow. I am also running Norton 360 2012 on the computer. Does that impact anything in that two system now are looking at everything from a security viewpoint?
Thanks for your help and any suggestions.
Dave

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