NortonMissedTask eating up 91% of CPU

Hi, I am having a problem with NortonMissedTask eating up almost all of the CPU cycles, even though no tasks appear to be missed.  This happens even if I disable the scheduled tasks in Norton Auto-Protect options.  I can kill the NortonMissedTask and the computer returns to normal for awhile.

 

I am running Norton for Mac 11 with all updates.  My Mac is up to date as well.

 

I would be glad to post any further information that might be useful. some log files or anything else that might help.  I can't find anything else about this error online.

 

Thanks for any ideas.