I would like to thanks every participant for their feedback. The combination finally leading to success was: Windows XP Thunderbird 3.0.7 Lightning 1.0b1 (standard, _not_ Inverse Edition) SOGo Connector 3.102pre1
Now all personal (SOGo) calendars continue to be displayed as expected and can be modified as usual. Thunderbird 3.1 seemingly dislikes my usage scenario. Regards, Wolf
-- [email protected] https://inverse.ca/sogo/lists
