NIS 2010 - Windows 7 Backup Problem

Running Windows 7, when I use the Microsoft backup feature in Windows 7 for the first time, the backup (including a system image) finishes as expected.  However a second backup results in the error "0x8 078014b" - access denied.  This error seems to occur after the data phase of the backup has completed and the system image is being developed.  If I "Disable Antivirus Auto-Protect" in NIS 2010, the second (or third ... Incremental?) backup(s) finish as expected.

  

 A quick internet search found the following:

 

http://social.technet.microsoft.com/Forums/en/w7itprogeneral/thread/c9c645db-1979-48c0-83b1-c724334269aa

 

I also searched within the "Norton Community" but did not find any reference to the above problem.

 

Need any additional info, just ask <g>.

 

Roy