Application that crashed: kcmshell4
Version of the application: 
KDE Version: 4.3.00 (KDE 4.3.0)
Qt Version: 4.5.2
Operating System: Linux 2.6.30-ARCH i686

What I was doing when the application crashed:
K3B error in the Setup

 -- Backtrace:
Application: Módulo de Controlo do KDE (kcmshell4), signal: Segmentation fault
[KCrash Handler]
#6  0xb42305fd in PolkitQt::Action::Private::computePkResult () from /usr/lib/libpolkit-qt-gui.so.0
#7  0xb4230723 in PolkitQt::Action::activate () from /usr/lib/libpolkit-qt-gui.so.0
#8  0xb42649bc in K3bSetup::save () from /usr/lib/kde4/kcm_k3bsetup.so
#9  0xb7d5ce2a in KCModuleProxy::save () from /usr/lib/libkutils.so.4
#10 0xb7d574f8 in KCMultiDialogPrivate::apply () from /usr/lib/libkutils.so.4
#11 0xb7d57675 in KCMultiDialog::slotOkClicked () from /usr/lib/libkutils.so.4
#12 0xb7d59bbb in KCMultiDialog::qt_metacall () from /usr/lib/libkutils.so.4
#13 0xb7ecfeca in KCMShellMultiDialog::qt_metacall () from /usr/lib/libkdeinit4_kcmshell4.so
#14 0xb761c9ac in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#15 0xb761d5e2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#16 0xb7ae45c7 in KDialog::okClicked () from /usr/lib/libkdeui.so.5
#17 0xb7ae6ec8 in KDialog::slotButtonClicked () from /usr/lib/libkdeui.so.5
#18 0xb7ae9379 in KDialog::qt_metacall () from /usr/lib/libkdeui.so.5
#19 0xb7bb0a5a in KPageDialog::qt_metacall () from /usr/lib/libkdeui.so.5
#20 0xb7d59aea in KCMultiDialog::qt_metacall () from /usr/lib/libkutils.so.4
#21 0xb7ecfeca in KCMShellMultiDialog::qt_metacall () from /usr/lib/libkdeinit4_kcmshell4.so
#22 0xb761c9ac in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#23 0xb761d5e2 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#24 0xb761f593 in QSignalMapper::mapped () from /usr/lib/libQtCore.so.4
#25 0xb761fe2d in QSignalMapper::map () from /usr/lib/libQtCore.so.4
#26 0xb762000e in QSignalMapper::map () from /usr/lib/libQtCore.so.4
#27 0xb76207db in QSignalMapper::qt_metacall () from /usr/lib/libQtCore.so.4
#28 0xb761c9ac in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#29 0xb761cdf8 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#30 0xb72dae01 in QAbstractButton::clicked () from /usr/lib/libQtGui.so.4
#31 0xb7005be9 in ?? () from /usr/lib/libQtGui.so.4
#32 0xb7007844 in ?? () from /usr/lib/libQtGui.so.4
#33 0xb7007ad1 in QAbstractButton::mouseReleaseEvent () from /usr/lib/libQtGui.so.4
#34 0xb6cae202 in QWidget::event () from /usr/lib/libQtGui.so.4
#35 0xb7005a8e in QAbstractButton::event () from /usr/lib/libQtGui.so.4
#36 0xb70af33d in QPushButton::event () from /usr/lib/libQtGui.so.4
#37 0xb6c59994 in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#38 0xb6c619c0 in QApplication::notify () from /usr/lib/libQtGui.so.4
#39 0xb7b7ffaa in KApplication::notify () from /usr/lib/libkdeui.so.5
#40 0xb7606fcb in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#41 0xb6c60983 in QApplicationPrivate::sendMouseEvent () from /usr/lib/libQtGui.so.4
#42 0xb6cce434 in ?? () from /usr/lib/libQtGui.so.4
#43 0xb6ccd915 in QApplication::x11ProcessEvent () from /usr/lib/libQtGui.so.4
#44 0xb6cf7f92 in ?? () from /usr/lib/libQtGui.so.4
#45 0xb635fd98 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#46 0xb63633e0 in g_main_context_iterate () from /usr/lib/libglib-2.0.so.0
#47 0xb6363513 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#48 0xb76316cc in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#49 0xb6cf76c5 in ?? () from /usr/lib/libQtGui.so.4
#50 0xb7605579 in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#51 0xb76059ca in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#52 0xb713c263 in QDialog::exec () from /usr/lib/libQtGui.so.4
#53 0xb7ed2f0e in kdemain () from /usr/lib/libkdeinit4_kcmshell4.so
#54 0x0804858b in _start ()

Reported using DrKonqi