Database Compactor error trying to archive from client

Users auto archiving stopped working. This error appears in the notes log on the client workstation:

Database compactor error: The server is not responding. The server may be down or you may be experiencing network problems. Contact your system administrator if this problem persists.

If I go to Archive > Archive Now it works fine. Client is set to archive automatically daily at 11:50AM and the above error appears in the log every day at the same time. Any ideas? Already tried resaving the archive profile. The settings are fine because it works if I kick it off manually, no errors.

Subject: Solution: Database Compactor error trying to archive from client

for anyone else experiencing this:

Open the user’s personal address book to the hidden view $Programs. Likely the program doc that is there has the wrong server name in it. Delete the doc then re-enable the auto archive schedule and the program doc will get recreated with the correct info.