Dear All, Thanks to the help received from this forum, I am now able to use pg_dump successfully. My problem now is that when I restore the dump into a newer version of DCS (i.e., postgresql-9.0.1--->postgresql-9.0.3), I get this error in iCal: The server responded with “HTTP/1.1 500 Internal Server Error” to operation CalDAVAccountRefreshQueueableOperation. I don't get any errors when restoring the dumped file, but I'm definitely missing something. What is the proper way to upgrade/migrate to a newer version of DCS (i.e., 2-->3)? Would greatly appreciate any insight. Thank you! Sincerely, Cyrus -- This electronic mail transmission may contain information that is protected by privacy laws. It is not intended for transmission to, or receipt by, any unauthorized persons.