Norton Community Watch Runs Even Though Turned Off

I'm running NIS 2010.  I have Norton Community Watch turned off. When I view activity under "Norton Tasks", I'm used to seeing NCW run for "1 second" with status "Not enrolled", which is expected behavior.  However, I see that today it ran for about two minutes, ending in status "Canceled".  Then, later in the day, it did the normal "1 second" run.  Any idea why the longer run?