We have recently upgrade to the True Image Restore Workstation 8353, from 8206 and installed Acronis and installed the remote agent on the client machines. I have a daily incremental backup task which backups up a users profile data (rather than complete h/disk) which previously ran fine, however now on 3 computers (so far) it displays a warning message (see attached file) stating the files are locked and requires user intervention. http://www.soula.co.uk/acronis.jpg This never use to happen all backups would just run in the background without any issues and no matter what files/programs where running. It doesn't happen when you backup the complete disk rather than just a selection of files. As I only did the upgrades to 8353 and installed the agent software (previously not installed on version 8206) yesterday, I will run further tests to try and diagnose the extent of the problem/no of user affected and upfdate this thread with my findings Any ideas on the cause?