"My Documents" on shared drive - can't uncheck Make Available Offl

Hello:

I have MyDocuments on a shared network drive. I moved them using the
Change-Target method of right-clicking on Start Menu\My Documents.

-I have my shared drive set for "Make Available Offline, don't include
subfolders"
-Then I selected "Mave available offline" for MyDocuments.

However, I want to select only specific sub-folders of the MyDocuments
available offline, but the option is grayed-out with Make Available checked.
I tried right clicking on MyDocuments to unselect Make Available Offline, but
it too is grayed-out.

I noticed that the MyDocuments folder and its sub-folders have a short-cut
icon. Could that be the cause? If so, how do I correct?