Norton - Need you to release my Disk Defragmenter

Norton ever since installing Norton Security, I cannot independently utilize my Windows 7 Disk Defragmenter.

I never had this problem with any previous versions of NIS and I have been a very long time customer.

Norton Security Task Scheduling has NO Tasks selected, and Manual Schedule is selected.

Idle Time Optimizer is set to OFF.

Yet when I try to run my Windows 7 Disk Defragmenter I get a pop up saying "Disk Defragmenter is using a customized setting created by another program".  This started right after installing Norton Security so I has to by this program.

I have also noted others with this problem when googling the issue.

Pls advise or create a way to make NS let go of the Windows Disk Defragmenter when Idle Time Optimizer is set to OFF.