ah, i found some infos in the logs :) sogo.log:
127.0.0.1 - - [04/Jan/2011:20:40:43 GMT] "GET /SOGo/dav/user/Contacts/public/ HTTP/1.1" 501 191/0 0.004 - - 0 127.0.0.1 - - [04/Jan/2011:20:26:46 GMT] "PROPFIND /SOGo/dav/user/Calendar/personal8b11a5be-1668-461f-8d5b-68def6a4ad99.ics HTTP/1.1" 404 120/127 0.033 - - 0 seems there is a slash missing in the 404 error. cheers. -- users@sogo.nu https://inverse.ca/sogo/lists
