[CalendarServer-users] Migrating CalendarServer to new disk

Hi I'm running CalendarServer on FreeBSD and accessing via iCal. I've recently moved the OS to a new disk and although CalendarServer starts up fine I'm no longer able to see my calendars from iCal. iCal seems to authenticate fine with the server but my subscribed calendars just don't appear and there's no indication of any errors on the client side or in the CalendarServer logs. I've done a complete 'tar -cpf ..' of the CalendarServer directory from the old disk and extracted to the new one to make sure there are no permission issues. Any ideas as to what's going on or how I can better diagnose the problem? Thanks Gianni