NIS 2011 deleted all my program files. Help!

I posted this message as a reply to an older string but I'm not sure how this forum works so I'm reposting it as a new message in the hopes it will get more visibility.

 

We bought Norton Internet Security 2011 at Office Depot in person about two weeks ago.  After uninstalling NIS 2010 and installing 2011, our internet settings were changed and we lost our internet connection.  Norton's support walked us through resetting our internet connection to the proper IP address.  When we then tried a second time to install NIS 2011 our program files, including Internet Explorer, were deleted and 2011 froze.  We spent a long time on the phone with Norton, first to be told we simply needed to pay them $100 to remove a virus.  The Norton virus removal person remoted in to our computer and told us our programs were gone and there was nothing they could do to help us.  Has anyone found a way to undo what appears to be a Norton uninstall of the original programs (IE and others; Windows 7 appears to still be there).



We have a Dell running Windows 7.

 

I have found 4 message strings with at least 7 people complaining of the same problem.

 

Thanks for any help.