Server is at 9.0.1 FP8. So are the users, who are all operating from a local replica. Replication settings are enforced by policy so they always replicate on a schedule. Many users will notice they are not getting any new mail, so they call the help desk. The techs connect to the user's PC, open the replicator page and find the message "This database is currently in use by another person or process, and cannot be accessed at this time". I assume the users are leaving their PC on overnight, and this message happens while the mail file is being compacted on the server. Apparently the user's replicator cannot recover and fails to reconnect with the server replica even after the compact has been completed. Anyone have any thoughts on this issue?