Internet is blocked after NAV 2011 install

Hello all,

        I have a newer Dell laptop with Windows7 Pro and only a few programs, office 2007 pro & Adobe & Symantec VPN client, etc.  I installed Norton AntiVirus 2011 and after the install in couldn't authorize it because it couldn' t reach the Norton Server.  i then realized that I couldn't get out to the internet.  under network settings it says I'm connected to the internet but IE won't find any webpages.  No error, it just looks and looks forever.  I can ping out to yahoo.com for instance and get a reply so I know my settings are correct also it worked fine right before the install.  I uninstalled NAV and the internet worked again.  I tried to reinstall just in case something messed up and it stopped working again.

 

it's pretty vanilla so I'm not sure what's going on.

 

Any ideas???