Dear Maintainer,

I synced a calDAV account to KOrganizer, including 1 contact's birthday calendar and 3 others. It works fine here. I then wanted to make the events appear in the panel's calendar applet. Activating the PIM-Module by hitting the checkbox worked. But when I select the four calendars and hit Apply or OK, the whole shell crashes. And it didn't recover overnight, had to Ctrl+Alt+Del/Shutdown the computer. Weirdly, if i do not check/select one (specific) of the calendars, everything works (for those others). Other systems using KDE could handle this calendar well. I can't see what's wrong about this specific calendar, but i'd wish it not to make the system crash.