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.
Per Microsoft: "If offline folder access is available for a user's roaming profile share, synchronization problems might occur because both offline folders and roaming profiles try to synchronize the files in the user's profile".
To disable offline caching on Windows 2003 Server, right click on the share and choose properties. On the Sharing tab, select the appropriate share from the share name drop down box. Next, click the Offline Settings box. On the Offline Settings box, choose “Files or programs from the share will not be available offline”. Click OK.