Main machine Win7x64 laptop Backup machine WinXP desktop Sync is to synchonize CAD library data files with the backup. Once the shared folder defined on the desktop disappeared from the Sync's list of 'Shared folders'. This morning I discovered this, re-added the folder and got a message some about folder's 'ownership'. After sync I found my yesterday library work on the laptop has been lost and replaced by old files from backup machine. How can I avoid it? Should there be a dialog to resolve file conflicts?