Version:            (using KDE KDE 3.4.2)
Installed from:    Fedora RPMs
OS:                Linux

This is the backtrace I got, but have no idea of the meaning, sorry.
____________________________________________________________________________
Using host libthread_db library "/lib/tls/libthread_db.so.1".
`shared object read from target memory' has disappeared; keeping its symbols.
[Thread debugging using libthread_db enabled]
[New Thread -1210029856 (LWP 4267)]
[KCrash handler]
#4  0xb7f43402 in __kernel_vsyscall ()
#5  0x003287d5 in raise () from /lib/tls/libc.so.6
#6  0x0032a149 in abort () from /lib/tls/libc.so.6
#7  0x007d81db in __gnu_cxx::__verbose_terminate_handler ()
   from /usr/lib/libstdc++.so.6
#8  0x007d5ef1 in __cxa_call_unexpected () from /usr/lib/libstdc++.so.6
#9  0x007d5f26 in std::terminate () from /usr/lib/libstdc++.so.6
#10 0x007d606f in __cxa_throw () from /usr/lib/libstdc++.so.6
#11 0x007d64bc in operator new () from /usr/lib/libstdc++.so.6
#12 0x007d6559 in operator new[] () from /usr/lib/libstdc++.so.6
#13 0x04d9507e in QString::setLength () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#14 0x04d9d519 in operator>> () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#15 0xb79ca8a6 in KlipperWidget::loadHistory ()
   from /usr/lib/kde3/klipper_panelapplet.so
#16 0xb79cb5d5 in KlipperWidget::readProperties ()
   from /usr/lib/kde3/klipper_panelapplet.so
#17 0xb79ccea3 in KlipperWidget::KlipperWidget ()
   from /usr/lib/kde3/klipper_panelapplet.so
#18 0xb79c6d00 in KlipperAppletWidget::KlipperAppletWidget ()
   from /usr/lib/kde3/klipper_panelapplet.solibthread_db
#19 0xb79c6dfc in KlipperApplet::KlipperApplet ()
   from /usr/lib/kde3/klipper_panelapplet.so
#20 0xb79c6ed0 in init () from /usr/lib/kde3/klipper_panelapplet.so
#21 0x00c234ce in PluginManager::loadApplet ()
   from /usr/lib/libkdeinit_kicker.so
#22 0x00c1650c in AppletContainer::AppletContainer ()
   from /usr/lib/libkdeinit_kicker.so
#23 0x00c24b42 in PluginManager::createAppletContainer ()
   from /usr/lib/libkdeinit_kicker.so
#24 0x00c0ba48 in ContainerArea::loadContainers ()
   from /usr/lib/libkdeinit_kicker.so
#25 0x00c0c8da in ContainerArea::initialize ()
   from /usr/lib/libkdeinit_kicker.so
#26 0x00c2a6f2 in PanelExtension::populateContainerArea ()
   from /usr/lib/libkdeinit_kicker.so
#27 0x00c2b822 in PanelExtension::qt_invoke ()
   from /usr/lib/libkdeinit_kicker.so
#28 0x04acc10e in QObject::activate_signal ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#29 0x04dfebad in QSignal::signal () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#30 0x04ae4eed in QSignal::activate () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#31 0x04aec0ff in QSingleShotTimer::event ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#32 0x04a6d539 in QApplication::internalNotify ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#33 0x04a6d6ca in QApplication::notify ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#34 0x044241e8 in KApplication::notify () from /usr/lib/libkdecore.so.4
#35 0x04a618ab in QEventLoop::activateTimers ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#36 0x04a1d6fe in QEventLoop::processEvents ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#37 0x04a82c8d in QEventLoop::processEvents ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#38 0x04a6c6ea in QApplication::processEvents ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#39 0x04a6c715 in QApplication::processEvents ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#40 0x00c1fbc0 in ExtensionManager::initialize ()
   from /usr/lib/libkdeinit_kicker.so
#41 0x00c20181 in ExtensionManager::qt_invoke ()
   from /usr/lib/libkdeinit_kicker.so
#42 0x04acc10e in QObject::activate_signal ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#43 0x04dfebad in QSignal::signal () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#44 0x04ae4eed in QSignal::activate () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#45 0x04aec0ff in QSingleShotTimer::event ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#46 0x04a6d539 in QApplication::internalNotify ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#47 0x04a6d6ca in QApplication::notify ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#48 0x044241e8 in KApplication::notify () from /usr/lib/libkdecore.so.4
#49 0x04a618ab in QEventLoop::activateTimers ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#50 0x04a1d6fe in QEventLoop::processEvents ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#51 0x04a82b85 in QEventLoop::enterLoop ()
   from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#52 0x04a82ade in QEventLoop::exec () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#53 0x04a6c73b in QApplication::exec () from /usr/lib/qt-3.3/lib/libqt-mt.so.3
#54 0x00c03518 in kdemain () from /usr/lib/libkdeinit_kicker.so
#55 0xb7f416c0 in kdeinitmain () from /usr/lib/kde3/kicker.so
#56 0x0804d9f1 in ?? ()
#57 0x00000001 in ?? ()
#58 0x0a082158 in ?? ()
#59 0x00000001 in ?? ()
#60 0x00000000 in ?? ()