Version:            (using KDE KDE 3.5.2)
Installed from:    Ubuntu Packages
OS:                Linux

I had the khelpcenter OPEN - (can't remember what topic sorry); I clicked on the "Glossary" tab & the application crashed, producing the following 'Backtrace':

Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread -1231788352 (LWP 4997)]
[KCrash handler]
#6  0xb720fe6e in QObject::children () from /usr/lib/libqt-mt.so.3
#7  0xb72d7c42 in QObject::queryList () from /usr/lib/libqt-mt.so.3
#8  0xb6d26f25 in KMainWindow::internalStatusBar (this=0x0)
    at kmainwindow.cpp:1125
#9  0xb6d84495 in KMainWindow::statusBar (this=0x0) at kmainwindow.cpp:1085
#10 0xb67f0530 in KHC::Glossary::rebuildGlossaryCache ()
   from /usr/lib/libkdeinit_khelpcenter.so
#11 0xb67f1ea8 in KHC::Glossary::show ()
   from /usr/lib/libkdeinit_khelpcenter.so
#12 0xb7442883 in QWidgetStack::raiseWidget () from /usr/lib/libqt-mt.so.3
#13 0xb74428e1 in QWidgetStack::raiseWidget () from /usr/lib/libqt-mt.so.3
#14 0xb7427cbf in QTabWidget::showTab () from /usr/lib/libqt-mt.so.3
#15 0xb768d42a in QTabWidget::qt_invoke () from /usr/lib/libqt-mt.so.3
#16 0xb72d7eb9 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#17 0xb72d87c8 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#18 0xb768ca59 in QTabBar::selected () from /usr/lib/libqt-mt.so.3
#19 0xb7424fed in QTabBar::setCurrentTab () from /usr/lib/libqt-mt.so.3
#20 0xb7421f22 in QTabBar::mousePressEvent () from /usr/lib/libqt-mt.so.3
#21 0xb731264e in QWidget::event () from /usr/lib/libqt-mt.so.3
#22 0xb742416f in QTabBar::event () from /usr/lib/libqt-mt.so.3
#23 0xb726de56 in QApplication::internalNotify () from /usr/lib/libqt-mt.so.3
#24 0xb726e3e0 in QApplication::notify () from /usr/lib/libqt-mt.so.3
#25 0xb793ad7d in KApplication::notify (this=0xbfba9eb4, receiver=0x8230da8, 
    event=0xbfba98cc) at kapplication.cpp:550
#26 0xb71ff1c5 in QApplication::sendSpontaneousEvent ()
   from /usr/lib/libqt-mt.so.3
#27 0xb71fa873 in QETWidget::translateMouseEvent ()
   from /usr/lib/libqt-mt.so.3
#28 0xb71f8d59 in QApplication::x11ProcessEvent () from /usr/lib/libqt-mt.so.3
#29 0xb72124db in QEventLoop::processEvents () from /usr/lib/libqt-mt.so.3
#30 0xb7286947 in QEventLoop::enterLoop () from /usr/lib/libqt-mt.so.3
#31 0xb728686a in QEventLoop::exec () from /usr/lib/libqt-mt.so.3
#32 0xb726c965 in QApplication::exec () from /usr/lib/libqt-mt.so.3
#33 0xb6815854 in kdemain () from /usr/lib/libkdeinit_khelpcenter.so
#34 0xb7f894f8 in kdeinitmain () from /usr/lib/kde3/khelpcenter.so
#35 0x0804e063 in launch (argc=3, _name=0x8137bdc "khelpcenter", 
    args=0x8137c29 "", cwd=0x0, envc=0, envs=0x8137c2d "", reset_env=false, 
    tty=0x0, avoid_loops=false, startup_id_str=0x0) at kinit.cpp:639
#36 0x0804e705 in handle_launcher_request (sock=8) at kinit.cpp:1205
#37 0x0804ec8d in handle_requests (waitForPid=0) at kinit.cpp:1406
#38 0x0804fd53 in main (argc=2, argv=0xbfbaa724, envp=0x0) at kinit.cpp:1850
#39 0xb7d20ea2 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#40 0x0804b811 in _start () at ../sysdeps/i386/elf/start.S:119

NB: I have *NOT* - as yet - reproduced the fault. I am a relative newbie - (this is my first report to "bugs.kde.org") - I was scared that if I tried to reproduce the fault, I would 'lose' the "Backtrace", so I decided to report it first & then try & reproduce it...I will now attempt to repeat it, & if it reoccurrs I will attempt to add that info to the bug report. TKU & God Bless You! - Bruce.