Application that crashed: 
Version of the application: 1.0
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.28-16-generic i686
Distribution: Ubuntu 9.04

 -- Backtrace:
Application: Jockey (), signal: Segmentation fault
[KCrash Handler]
#6  0xb688d52a in QWidget::metric (this=0x9ce5048, m=QPaintDevice::PdmDpiY) at kernel/qwidget_x11.cpp:2580
#7  0xb69f2989 in QFont (this=0xbf855ebc, font=@0xbf855efc, pd=0x9ce5050) at ../../include/QtGui/../../src/gui/painting/qpaintdevice.h:96
#8  0xb684bdb7 in QWidgetPrivate::updateFont (this=0x9cceda0, font=@0xbf855efc) at kernel/qwidget.cpp:4450
#9  0xb684bce8 in QWidgetPrivate::resolveFont (this=0x9cceda0) at ../../include/QtGui/private/../../../src/gui/kernel/qwidget_p.h:274
#10 0xb6857883 in QWidget::setParent (this=0x9ce5048, parent=0x0, f={i = -1081778240}) at kernel/qwidget.cpp:9253
#11 0xb6857c4e in QWidget::setParent (this=0xbf855ebc, parent=0xbf855ec4) at kernel/qwidget.cpp:9172
#12 0xb685dc36 in QWidgetAction::releaseWidget (this=0x9cca300, widget=0x9ce5048) at kernel/qwidgetaction.cpp:208
#13 0xb6c4982a in ~QMenu (this=0x9cd2770) at widgets/qmenu.cpp:1367
#14 0xb53952ef in ~KMenu (this=0x9cd2770) at /build/buildd/kde4libs-4.3.2/kdeui/widgets/kmenu.cpp:175
#15 0xb533991d in ~KSystemTrayIcon (this=0x9ce3740) at /build/buildd/kde4libs-4.3.2/kdeui/util/ksystemtrayicon.cpp:81
#16 0xb57adc71 in sipKSystemTrayIcon::~sipKSystemTrayIcon () from /usr/lib/python2.6/dist-packages/PyKDE4/kdeui.so
#17 0xb7a63e0f in QObjectPrivate::deleteChildren (this=0x9c98bc0) at kernel/qobject.cpp:1847
#18 0xb684ebbb in ~QWidget (this=0x9c8af00) at kernel/qwidget.cpp:1367
#19 0xb6ceda96 in ~QDialog (this=0x9c8af00) at dialogs/qdialog.cpp:298
#20 0xb7536f4f in ?? () from /var/lib/python-support/python2.6/PyQt4/QtGui.so
#21 0xb74d513b in ?? () from /var/lib/python-support/python2.6/PyQt4/QtGui.so
#22 0xb74d517d in ?? () from /var/lib/python-support/python2.6/PyQt4/QtGui.so
#23 0xb7fd7688 in ?? () from /var/lib/python-support/python2.6/sip.so
#24 0xb7fd76c1 in ?? () from /var/lib/python-support/python2.6/sip.so
#25 0x080a90d5 in ?? ()
#26 0x0808e184 in ?? ()
#27 0x080a915b in ?? ()
#28 0x0808cb61 in ?? ()
#29 0x0808ee69 in PyDict_SetItem ()
#30 0x080909c1 in _PyModule_Clear ()
#31 0x080f17a2 in PyImport_Cleanup ()
#32 0x080fd90d in Py_Finalize ()
#33 0x080fd371 in ?? ()
#34 0x080fd55d in PyErr_PrintEx ()
#35 0x080fd7c2 in PyErr_Print ()
#36 0x080fe392 in PyRun_SimpleFileExFlags ()
#37 0x0805c882 in Py_Main ()
#38 0x0805b972 in main ()

Reported using DrKonqi