I have a VPS running Ubuntu 10.04 LTS with Zimbra, syncing the calendar with my Android phone and a OS X Lion notebook (iCal) via CalDAV.

After upgrading zimbra to 7.1.3 (from 7.1.2), neither CalDAV sync works anymore; no errors were given during the upgrade.

In an attempt to fix this issue, I removed the calendar from iCal and tried to re-add it. It no longer automatically finds the calendar, and when I manually add the URL (/principals/users/olivier/) it gives the (dutch) error "De accountinformatie is niet gevonden", which translates to "The accountinformation has not been found."

When I use a browser to browse to the URL it does list a XML like page:


	Authenticated user:	olivier@olivierfaber.com
	Current date:		Wed Oct 12 12:14:49 CEST 2011


	Name:			USER_ROOT
	Path:			/
	Date:			Wed, 02 Mar 2011 15:26:04 +0100 (CET)
	Owner account name:	olivier@olivierfaber.com


<D:prop xmlns:D="DAV:">
  <D:getlastmodified>Wed, 02 Mar 2011 15:26:04 +0100 (CET)</D:getlastmodified>
I assume i am not the only one with this setup so there must be something wrong with my server.. Any clues?