Application that crashed: kwifimanager
Version of the application: 3.5.8
KDE Version: 4.3.1 (KDE 4.3.1)
Qt Version: 4.5.2
Operating System: Linux 2.6.30.5-43.fc11.i586 i686
Distribution: "Fedora release 11 (Leonidas)"

What I was doing when the application crashed:
I clicked on Settings and selected Acoustic Scanning - and kwifimanager crashed.

 -- Backtrace:
Application: KWiFiManager (kwifimanager), signal: Segmentation fault
[KCrash Handler]
#6  0x00d551ee in Arts::Synth_FREQUENCY_base::_create (subClass="Arts::Synth_FREQUENCY") at artsflow.cc:561
#7  0x00d629e9 in Arts::Synth_FREQUENCY::_Creator () at artsflow.cc:676
#8  0x00c97b94 in Arts::Object::Pool::checkcreate (this=<value optimized out>, this=<value optimized out>) at reference.h:124
#9  Arts::Object::_node (this=<value optimized out>, this=<value optimized out>) at reference.h:262
#10 Arts::setValue (this=<value optimized out>, this=<value optimized out>) at connect.cc:129
#11 0x080542eb in QWidget::setUpdatesEnabled(bool) ()
#12 0x080545fa in QWidget::setUpdatesEnabled(bool) ()
#13 0x0805aeb0 in QWidget::setUpdatesEnabled(bool) ()
#14 0x030b676a in QObject::activate_signal(QConnectionList*, QUObject*) () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#15 0x030b87f8 in QObject::activate_signal(int) () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#16 0x0344dff9 in QTimer::timeout() () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#17 0x030debce in QTimer::event(QEvent*) () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#18 0x0304dccd in QApplication::internalNotify(QObject*, QEvent*) () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#19 0x0304fab3 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#20 0x028c4f6c in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdecore.so.4
#21 0x030422f4 in QEventLoop::activateTimers() () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#22 0x02ff6421 in QEventLoop::processEvents(unsigned int) () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#23 0x03068940 in QEventLoop::enterLoop() () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#24 0x030687e6 in QEventLoop::exec() () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#25 0x0304e3bf in QApplication::exec() () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#26 0x080601d9 in QWidget::setUpdatesEnabled(bool) ()
#27 0x004ada66 in __libc_start_main (main=0x8060020 <QWidget::setUpdatesEnabled(bool)+56864>, argc=1, ubp_av=0xbf8aff24, init=0x8063220, fini=0x8063210, rtld_fini=0x483030 <_dl_fini>, 
    stack_end=0xbf8aff1c) at libc-start.c:220
#28 0x08052231 in QWidget::setUpdatesEnabled(bool) ()

Reported using DrKonqi