Kontact 1.1 (KDE 3.4) and egroupware 1.0.0.0007

Hi all,

I am using Kontact 1.1 with Korganizer 3.4 and an egroupware server 1.0.0.007 
connected with xmlrpc.

Sometimes I have the problem that dates are doubled or even more. 

I create a date in Kontact and everything looks quite fine, but the next day I 
log in again, and I find the date 2 or more time in my calendar. This happens 
most of the time I have edited the dates.

Is there something I can do wrong, or what can I do to find a potential bug?

Bye 

Christoph