Since 2/11/2009 I have been unable to run Windows Update. When I attempt it says An error occurred while checking for new updates for your computer. Error(s) found: Code 8000FFFF. My copy of Windows 7 is legit and activated, and I am not running any 3rd party firewalls that would be blocking this. I even tried disabling the windows firewall and my Symantec 11.0.4. Any ideas?