We recently released a hotfix for an issue related to short file name issues and "access denied" error.
The KB associated with the same is: http://support.microsoft.com/?kbid=906881
(906881) - You may receive an "Access Denied" error message when you use the synchronization with consistency check feature in Data Protection Manager and you are running Windows Server 2003.
The problem occurs because during a consistency check, both the long name and the short name of each file m