NIS Community starting up

 About a week ago, I developed a problem I only see when I try to shutdown the NIS/NAV Community Forum site.  After reading the post that look interesting and then I click on the red X, to exit.  The program exits, then the hourglass comes on and the program starts up again?  I click on the red X again and the site closes, the hourglass comes back on and then the program restarts?  After this third time, I can click on the red X and the program does close down.  This is the only site acting like this, scans are clean, no redirects, and nothing else seems unusual.  When I go to "Task Manager" and look at "Applications" it only shows one instance of the Norton Community showing.  It doesn't restart everytime, but quite often.  What else could I check?