Lost events Korganizer+Kolab

[Bohuslav Blin]

Hello,
korganizer/kolab sometimes didn't save new events. I found when:

I use 2 calendars resources. First one is my own, second one is for group. 
Both are on the same kolab server. When i add new event, korganizer ask me 
which calendar i want to use to save. But sometimes korganizer dont't ask me, 
when i close korganizer, this new event is lost.

Same behaviour is when i use korganizer+kmail separatly and also with 
kontact(kmail+korganizer).

i use:
kolab 2.0
Debian sarge + KDE 3.4.1

Bo.