Version:           4.1.3 (using KDE 4.1.3)
OS:                Linux
Installed from:    Ubuntu Packages

I am trying to do some sound configuration using system settings. Systemsetting crashed when:
a) I a clicking the sound icon
b) play a sound doing: Notifiactions - coose a event source (e.g. KMail) - select a sound to play - press the play button

Here is output I got from the crash handler:
Application: System Settings (systemsettings), signal SIGSEGV
(no debugging symbols found)
...
(no debugging symbols found)
(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread 0x7fe77ace56f0 (LWP 15825)]
[New Thread 0x40f85950 (LWP 16013)]
(no debugging symbols found)
...
(no debugging symbols found)
[KCrash handler]
#5  0x00007fe778401690 in strlen () from /lib/libc.so.6
#6  0x00007fe7783ca44e in vfprintf () from /lib/libc.so.6
#7  0x00007fe77847bd18 in __vsnprintf_chk () from /lib/libc.so.6
#8  0x00007fe76b106fad in ?? () from /usr/lib/libxine.so.1
#9  0x00007fe76b0e99f4 in xine_log () from /usr/lib/libxine.so.1
#10 0x00007fe76b0f4ecc in ?? () from /usr/lib/libxine.so.1
#11 0x00007fe76b368fc2 in ?? () from /usr/lib/kde4/phonon_xine.so
#12 0x00007fe76b36c5dc in KPluginFactory::createInstance<Phonon::Xine::Backend, QObject> () from /usr/lib/kde4/phonon_xine.so
#13 0x00007fe779b74845 in KPluginFactory::create ()
   from /usr/lib/libkdecore.so.5
#14 0x00007fe76ba8f5b9 in ?? ()
   from /usr/lib/kde4/plugins/phonon_platform/kde.so
#15 0x00007fe76ba90f0d in ?? ()
   from /usr/lib/kde4/plugins/phonon_platform/kde.so
#16 0x00007fe76fa244c8 in ?? () from /usr/lib/libphonon.so.4
#17 0x00007fe76fa25407 in Phonon::Factory::backend ()
   from /usr/lib/libphonon.so.4
#18 0x00007fe76fa20cf2 in ?? () from /usr/lib/libphonon.so.4
#19 0x00007fe76fa2125d in ?? () from /usr/lib/libphonon.so.4
#20 0x00007fe76fa1b6b0 in ?? () from /usr/lib/libphonon.so.4
#21 0x00007fe76fa1c341 in Phonon::AudioOutput::AudioOutput ()
   from /usr/lib/libphonon.so.4
#22 0x00007fe76fa14230 in Phonon::createPlayer () from /usr/lib/libphonon.so.4
#23 0x00007fe76fc4866f in ?? () from /usr/lib/libknotifyconfig.so.4
#24 0x00007fe76fc487c0 in ?? () from /usr/lib/libknotifyconfig.so.4
#25 0x00007fe7796bb134 in QMetaObject::activate ()
   from /usr/lib/libQtCore.so.4
#26 0x00007fe77914f787 in QAbstractButton::clicked ()
   from /usr/lib/libQtGui.so.4
#27 0x00007fe778ed38db in ?? () from /usr/lib/libQtGui.so.4
#28 0x00007fe778ed54a2 in ?? () from /usr/lib/libQtGui.so.4
#29 0x00007fe778ed56f5 in QAbstractButton::mouseReleaseEvent ()
   from /usr/lib/libQtGui.so.4
#30 0x00007fe778f9cf8a in QToolButton::mouseReleaseEvent ()
   from /usr/lib/libQtGui.so.4
#31 0x00007fe778c1b329 in QWidget::event () from /usr/lib/libQtGui.so.4
#32 0x00007fe778bc8c3d in QApplicationPrivate::notify_helper ()
   from /usr/lib/libQtGui.so.4
#33 0x00007fe778bd122a in QApplication::notify () from /usr/lib/libQtGui.so.4
#34 0x00007fe77a002fcb in KApplication::notify () from /usr/lib/libkdeui.so.5
#35 0x00007fe7796a6d61 in QCoreApplication::notifyInternal ()
   from /usr/lib/libQtCore.so.4
#36 0x00007fe778bd05c8 in QApplicationPrivate::sendMouseEvent ()
   from /usr/lib/libQtGui.so.4
#37 0x00007fe778c34be9 in ?? () from /usr/lib/libQtGui.so.4
#38 0x00007fe778c33607 in QApplication::x11ProcessEvent ()
   from /usr/lib/libQtGui.so.4
#39 0x00007fe778c5b2c4 in ?? () from /usr/lib/libQtGui.so.4
#40 0x00007fe775187d3b in g_main_context_dispatch ()
   from /usr/lib/libglib-2.0.so.0
#41 0x00007fe77518b50d in ?? () from /usr/lib/libglib-2.0.so.0
#42 0x00007fe77518b6cb in g_main_context_iteration ()
   from /usr/lib/libglib-2.0.so.0
#43 0x00007fe7796cf15f in QEventDispatcherGlib::processEvents ()
   from /usr/lib/libQtCore.so.4
#44 0x00007fe778c5aa6f in ?? () from /usr/lib/libQtGui.so.4
#45 0x00007fe7796a5682 in QEventLoop::processEvents ()
   from /usr/lib/libQtCore.so.4
#46 0x00007fe7796a580d in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#47 0x00007fe7796a7cbd in QCoreApplication::exec ()
   from /usr/lib/libQtCore.so.4
#48 0x0000000000411b66 in _start ()
#0  0x00007fe778427621 in nanosleep () from /lib/libc.so.6