Version:            (using KDE 4.1.0)
OS:                Linux
Installed from:    Ubuntu Packages

When I start up Kontact shut down at once. I get this bugreport:
Program: Kontact (kontact), signal SIGSEGV
(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread 0x7fed5a99e6f0 (LWP 6620)]
(no debugging symbols found)
[KCrash handler]
#5  0x00007fed41ca2101 in Akregator::FeedList::findByID ()
   from /usr/lib/kde4/akregatorpart.so
#6  0x00007fed41cc496f in ?? () from /usr/lib/kde4/akregatorpart.so
#7  0x00007fed41cc4aa2 in ?? () from /usr/lib/kde4/akregatorpart.so
#8  0x00007fed592ff134 in QMetaObject::activate ()
   from /usr/lib/libQtCore.so.4
#9  0x00007fed5930539f in ?? () from /usr/lib/libQtCore.so.4
#10 0x00007fed592f9a43 in QObject::event () from /usr/lib/libQtCore.so.4
#11 0x00007fed5880cc3d in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#12 0x00007fed588149ba in QApplication::notify () from /usr/lib/libQtGui.so.4
#13 0x00007fed59c46b8b in KApplication::notify () from /usr/lib/libkdeui.so.5
#14 0x00007fed592ead61 in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#15 0x00007fed59316ab6 in ?? () from /usr/lib/libQtCore.so.4
#16 0x00007fed593131fd in ?? () from /usr/lib/libQtCore.so.4
#17 0x00007fed52a1bd3b in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
#18 0x00007fed52a1f50d in ?? () from /usr/lib/libglib-2.0.so.0
#19 0x00007fed52a1f6cb in g_main_context_iteration ()
   from /usr/lib/libglib-2.0.so.0
#20 0x00007fed5931315f in QEventDispatcherGlib::processEvents ()
   from /usr/lib/libQtCore.so.4
#21 0x00007fed5889ea6f in ?? () from /usr/lib/libQtGui.so.4
#22 0x00007fed592e9682 in QEventLoop::processEvents ()
   from /usr/lib/libQtCore.so.4
#23 0x00007fed592e980d in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#24 0x00007fed592ebcbd in QCoreApplication::exec ()
   from /usr/lib/libQtCore.so.4
#25 0x00000000004048e5 in _start ()
#0  0x00007fed5806b5f0 in nanosleep () from /lib/libc.so.6