Hi All, I'm using Lightning <http://www.mozilla.org/projects/calendar/sunbird/> extension (works like Sunbird <http://www.mozilla.org/projects/calendar/sunbird/>) for managing my calender. How I can sync Horde's calender (kronolith) with Thunderbird's calender? Thanks for advise. ----- Best Regards Muhammad Bashir Al-Noimi My Blog: http://mbnoimi.net/