kdepim - kontact starting unwantedly

Hello,

I have always had success syncing my SE K750i with KDE PIM (KDE 3.5.10 atm) on my gentoo setup, but haven't used opensync in a while. When I tried yesterday, the following problem came up: I manually start the sync (either through KitchenSync or msynctool), having exited Kontact and KAddressbook of course, the two apps immediately start themselve and of course syncing fails. See log:

$ msynctool --sync k750i
Synchronizing group "K750i"
Member 2 of type kdepim-sync had an error while connecting: Kontact is running. Please finish it
Member 1 of type irmc-sync had an error while connecting: Request failed
All clients have disconnected
The sync failed: Unable to connect one of the members
Error while synchronizing: Unable to connect one of the members

I have never seen behaviour like this in KDE before, and don't know where to start looking. Can anyone help me out? No matter what i do, Kontact always automatically starts at beginning of sync. I am currently using Opensync 0.22, but have tried and failed with 0.36 as well (same symptoms).