samba - Dec 2012 - SAMBA4: Caching enabled on roaming profile share; cannot disable.

After logging in the Windows Event Log records the following: 

"Windows has detected that Offline Caching is enabled on the Roaming
Profile share - to avoid potential profile corruption, Offline Caching
must be disabled on shares where roaming user profiles are stored. "

But navigating to the share via Computer Management -> System Tools ->
Shares -> Profiles -> Properties -> Caching -> Unchecking
"Allow caching
of files in this shared folder" only results in an "Changes cannot be
saved. Access is denied" dialog box when the changes are applied.

-- 
Adam Tauno Williams  GPG D95ED383
Systems Administrator, Python Developer, LPI / NCLA