Application that crashed: 
Version of the application: 1.0
KDE Version: 4.2.96 (KDE 4.2.96 (KDE 4.3 RC2))
Qt Version: 4.5.1
Operating System: Linux 2.6.28-13-generic x86_64
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
Jockey crashed

 -- Backtrace:
Application: Jockey (), signal: Segmentation fault
[KCrash Handler]
#5  0x00007f9cb0ca5114 in QWidget::metric (this=0x255c970, m=QPaintDevice::PdmDpiY) at kernel/qwidget_x11.cpp:2579
#6  0x00007f9cb0e1fdfa in QFont (this=0x7fffbc833920, font=@0x7fffbc833980, pd=0x255c980) at ../../include/QtGui/../../src/gui/painting/qpaintdevice.h:96
#7  0x00007f9cb0c66884 in QWidgetPrivate::updateFont (this=0x252a6d0, font=@0x7fffbc833980) at kernel/qwidget.cpp:4431
#8  0x00007f9cb0c667bc in QWidgetPrivate::resolveFont (this=0x252a6d0) at ../../include/QtGui/private/../../../src/gui/kernel/qwidget_p.h:272
#9  0x00007f9cb0c71702 in QWidget::setParent (this=0x255c970, parent=0x0, f={i = -1132250464}) at kernel/qwidget.cpp:9225
#10 0x00007f9cb0c71a42 in QWidget::setParent (this=0x252a868, parent=0x8) at kernel/qwidget.cpp:9144
#11 0x00007f9cb0c77206 in QWidgetAction::releaseWidget (this=0x25567a0, widget=0x255c970) at kernel/qwidgetaction.cpp:208
#12 0x00007f9cb104a12f in ~QMenu (this=0x24e0b60) at widgets/qmenu.cpp:1367
#13 0x00007f9cabc4d04b in ~KMenu (this=0x24e0b60) at /build/buildd/kde4libs-4.2.96/kdeui/widgets/kmenu.cpp:175
#14 0x00007f9cabbf9b93 in ~KSystemTrayIcon (this=0x2576fe0) at /build/buildd/kde4libs-4.2.96/kdeui/util/ksystemtrayicon.cpp:81
#15 0x00007f9cac35098e in sipKSystemTrayIcon::~sipKSystemTrayIcon () from /usr/lib/python2.6/dist-packages/PyKDE4/kdeui.so
#16 0x00007f9cb313e901 in QObjectPrivate::deleteChildren (this=0x24fdf40) at kernel/qobject.cpp:1854
#17 0x00007f9cb0c69072 in ~QWidget (this=0x24fd8c0) at kernel/qwidget.cpp:1366
#18 0x00007f9cb1b9b54e in ?? () from /usr/lib/python2.6/dist-packages/PyQt4/QtGui.so
#19 0x00007f9cb1b41d18 in ?? () from /usr/lib/python2.6/dist-packages/PyQt4/QtGui.so
#20 0x00007f9cb1fb3376 in ?? () from /usr/lib/python2.6/dist-packages/sip.so
#21 0x0000000000469bd5 in ?? ()
#22 0x000000000044d0f3 in ?? ()
#23 0x0000000000469c6b in ?? ()
#24 0x000000000044b967 in ?? ()
#25 0x000000000044df0d in PyDict_SetItem ()
#26 0x000000000044fc31 in _PyModule_Clear ()
#27 0x00000000004b77d6 in PyImport_Cleanup ()
#28 0x00000000004c44ad in Py_Finalize ()
#29 0x00000000004c3f1a in ?? ()
#30 0x00000000004c411d in PyErr_PrintEx ()
#31 0x00000000004c4ec7 in PyRun_SimpleFileExFlags ()
#32 0x00000000004189ce in Py_Main ()
#33 0x00007f9cb38025a6 in __libc_start_main (main=0x417bb0 <main>, argc=2, ubp_av=0x7fffbc834138, init=0x54a180 <__libc_csu_init>, fini=<value optimized out>, rtld_fini=<value optimized out>, 
    stack_end=0x7fffbc834128) at libc-start.c:220
#34 0x0000000000417ae9 in _start ()

Reported using DrKonqi