When I try to modify an entry in KOrganizer, it won't let me, claiming another process has locked the entry. ...adding and deleting entries works just fine, though. It's really annoying actually, it cuts the usability of the whole app by half.
You probably need to remove some stale locks, look here: http://bugs.kde.org/show_bug.cgi?id=83050
thank you ...i'll just close this bug then as CANTFIX:]