Flash player won't work after installing Norton Antivirus 2011

Got hit w/a trojan virus and cleared it out w/Norton 2011 to the rescue; however, since installation flash player will not work.  When you go to a page requiring the player, it tells you to install the newest version and brings you to adobe.  I've installed/uninstalled, removed firewalls, removed adobe exceptions placed in norton - rebooted again and again - to no avail.  Ever see the south park episode when they lost internet?? I feel like a part of me is gone and I would love to get it back!  Any help would be appreciated! Nikki