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Try this:
Control Panel | Internet Options | General tab -
Delete all Cookies, Delete all Temporary Interenet Files (include offline
content),
Click on the "Settings" button next to "Delete Files" button -
Click on "View Objects"
In "Downloaded Program Files" window, remove any that say "Unknown" or
"Damaged"
Close that Window
Click "OK" at the bottom of the "Settings Window"
Back on the General tab -
Clear History
Click OK at the bottom of Internet Options
Try your Classmates link again.
HTH
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