Our laptop users use Offline Files when traveling. Recently, one of our users returned to the office. His files appeared to syncronize correctly. However, the system keeps putting up a message that one file was modified offline and needs to be synced. When we manually run the sync, the system reports that the all files synced but after a moment the message about a file needing synced reappears. When we view the file list, all of the files are marked and syncronized. Reboot will not clear the issue.
How can a determine which file is causing the issue?