Application that crashed: ksysguard
Version of the application: 4.3.3 (KDE 4.3.3) "release 2"
KDE Version: 4.3.3 (KDE 4.3.3) "release 2"
Qt Version: 4.5.3
Operating System: Linux 2.6.31.5-0.1-desktop x86_64
Distribution: "openSUSE 11.2 (x86_64)"

What I was doing when the application crashed:
Changing the colors of the network history plot lines will crash System Monitor every time.
X86_64 Using KDE 4.3.3 (KDE 4.3.3) "release 2".

To Reproduce:
Open System Monitor, 
select System Load Tab
Right click Network History,  select Properties
Click Sensors, 
Double click  any sensor
Change the color using the presented color sensor
Click OK.
Crash



 -- Backtrace:
Application: System Monitor (kdeinit4), signal: Segmentation fault
[KCrash Handler]
#5  0x00007f3152cb3dc0 in QWidget::setUpdatesEnabled(bool) () from /usr/lib64/libkdeinit4_ksysguard.so
#6  0x00007f3152c9af4f in QWidget::setUpdatesEnabled(bool) () from /usr/lib64/libkdeinit4_ksysguard.so
#7  0x00007f3152c9bf79 in QWidget::setUpdatesEnabled(bool) () from /usr/lib64/libkdeinit4_ksysguard.so
#8  0x00007f315d149fbc in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQtCore.so.4
#9  0x00007f315ba9346a in KDialog::slotButtonClicked(int) () from /usr/lib64/libkdeui.so.5
#10 0x00007f315ba95799 in KDialog::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkdeui.so.5
#11 0x00007f315bb49c90 in KPageDialog::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libkdeui.so.5
#12 0x00007f3152c9d570 in QWidget::setUpdatesEnabled(bool) () from /usr/lib64/libkdeinit4_ksysguard.so
#13 0x00007f315d149fbc in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQtCore.so.4
#14 0x00007f315d14caee in QSignalMapper::mapped(int) () from /usr/lib64/libQtCore.so.4
#15 0x00007f315d14dce0 in QSignalMapper::map(QObject*) () from /usr/lib64/libQtCore.so.4
#16 0x00007f315d14df50 in QSignalMapper::qt_metacall(QMetaObject::Call, int, void**) () from /usr/lib64/libQtCore.so.4
#17 0x00007f315d149fbc in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQtCore.so.4
#18 0x00007f315b508e27 in QAbstractButton::clicked(bool) () from /usr/lib64/libQtGui.so.4
#19 0x00007f315b26ac2b in ?? () from /usr/lib64/libQtGui.so.4
#20 0x00007f315b26c83b in ?? () from /usr/lib64/libQtGui.so.4
#21 0x00007f315b26ca85 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () from /usr/lib64/libQtGui.so.4
#22 0x00007f315af72cf0 in QWidget::event(QEvent*) () from /usr/lib64/libQtGui.so.4
#23 0x00007f315af242ac in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#24 0x00007f315af2b3c1 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#25 0x00007f315bb1ef26 in KApplication::notify(QObject*, QEvent*) () from /usr/lib64/libkdeui.so.5
#26 0x00007f315d134ddc in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#27 0x00007f315af2ac90 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&) () from /usr/lib64/libQtGui.so.4
#28 0x00007f315af90cfe in ?? () from /usr/lib64/libQtGui.so.4
#29 0x00007f315af8fd9a in QApplication::x11ProcessEvent(_XEvent*) () from /usr/lib64/libQtGui.so.4
#30 0x00007f315afb7b6c in ?? () from /usr/lib64/libQtGui.so.4
#31 0x00007f3159e6ddde in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#32 0x00007f3159e717a8 in ?? () from /usr/lib64/libglib-2.0.so.0
#33 0x00007f3159e718d0 in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#34 0x00007f315d15d3a3 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#35 0x00007f315afb731e in ?? () from /usr/lib64/libQtGui.so.4
#36 0x00007f315d133712 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#37 0x00007f315d133ae4 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#38 0x00007f315d135c99 in QCoreApplication::exec() () from /usr/lib64/libQtCore.so.4
#39 0x00007f3152cd31c3 in kdemain () from /usr/lib64/libkdeinit4_ksysguard.so
#40 0x0000000000406f88 in _start ()

Reported using DrKonqi