Internet Security 2010 - background task / screensaver issue

I upgraded to Windows 7 a month ago and noticed that my Windows 7 screensaver would not come up as there were background scans always going on.  I turned off idle time scans which seemed to work for a while but just recently noticed screensaver issues again with "Norton Internet Security Is Performing Background Tasks" pop up coming up and staying on indefinitely.  I read on this forum to set the scan time to 1 minute idle and screensaver to 15 minutes from idle and am still having the problem.  The pop up will stay there indefinately with no screensaver at all.    I cannot figure this one out.  - any help here is greatly appreciated.

 

Thanks,

Mike