Version:            (using KDE 3.1.94 (CVS >= 20031206), compiled sources)
Compiler:          gcc version 3.2.3 (Debian)
OS:          Linux (i686) release 2.6.1-love3

Well, just crashed when started to browsing another site after closing a tab. Anyways, here's the backtrace if it helps:

[New Thread 1097637600 (LWP 12835)]
0x4139d30e in __waitpid_nocancel () from /lib/tls/libpthread.so.0
#0  0x4139d30e in __waitpid_nocancel () from /lib/tls/libpthread.so.0
#1  0x40793a2d in KCrash::defaultCrashHandler(int) ()
   from /home/tpr/kdecvshead/lib/libkdecore.so.4
#2  <signal handler called>
#3  0x40b32b70 in QShared::ref() (this=0x90909090) at qshared.h:49
#4  0x40f8c3c4 in QString (this=0xbfffe6d0, s=@0x41f41388)
    at tools/qstring.cpp:1394
#5  0x4074ff07 in KIconEffect::fingerprint(int, int) const ()
   from /home/tpr/kdecvshead/lib/libkdecore.so.4
#6  0x4076340b in KIconFactory::createPixmap(QIconSet const&, QIconSet::Size, QIconSet::Mode, QIconSet::State) () from /home/tpr/kdecvshead/lib/libkdecore.so.4
#7  0x40bd5b2f in QIconSetPrivate::icon(QIconSet const*, QIconSet::Size, QIconSet::Mode, QIconSet::State) (this=0x838dc10, iconSet=0xbfffe990, size=Small, 
    mode=Active, state=Off) at kernel/qiconset.cpp:195
#8  0x40bd6346 in QIconSet::pixmap(QIconSet::Size, QIconSet::Mode, QIconSet::State) const (this=0xbfffe990, size=Small, mode=Active, state=Off)
    at kernel/qiconset.cpp:520
#9  0x40569776 in KToolBarButton::drawButton(QPainter*) () at qcstring.h:65
#10 0x40ccb238 in QButton::paintEvent(QPaintEvent*) (this=0x8316540)
    at widgets/qbutton.cpp:882
#11 0x40c5d1bd in QWidget::event(QEvent*) (this=0x8316540, e=0xbfffecf0)
    at kernel/qwidget.cpp:4751
#12 0x40ba8b57 in QApplication::internalNotify(QObject*, QEvent*) (
    this=0xbffff720, receiver=0x8316540, e=0xbfffecf0)
    at kernel/qapplication.cpp:2614
#13 0x40ba8766 in QApplication::notify(QObject*, QEvent*) (this=0xbffff720, 
    receiver=0x8316540, e=0xbfffecf0) at kernel/qapplication.cpp:2502
#14 0x406f348c in KApplication::notify(QObject*, QEvent*) ()
   from /home/tpr/kdecvshead/lib/libkdecore.so.4
#15 0x40b31f27 in QApplication::sendEvent(QObject*, QEvent*) (
    receiver=0x8316540, event=0xbfffecf0) at qapplication.h:490
#16 0x40b6aa65 in QWidget::repaint(int, int, int, int, bool) (this=0x8316540, 
    x=0, y=0, w=28, h=27, erase=false) at kernel/qwidget_x11.cpp:1577
#17 0x40c5ec8c in QWidget::repaint(QRect const&, bool) (this=0x8316540, 
    r=@0xbfffed90, erase=false) at qwidget.h:817
#18 0x40c5e82a in QWidget::repaint(bool) (this=0x8316540, erase=false)
    at kernel/qwidget.cpp:5981
#19 0x405693ef in KToolBarButton::enterEvent(QEvent*) () at qcstring.h:65
#20 0x40c5d17f in QWidget::event(QEvent*) (this=0x8316540, e=0xbffff040)
    at kernel/qwidget.cpp:4740
#21 0x40ba8b57 in QApplication::internalNotify(QObject*, QEvent*) (
    this=0xbffff720, receiver=0x8316540, e=0xbffff040)
    at kernel/qapplication.cpp:2614
#22 0x40ba8766 in QApplication::notify(QObject*, QEvent*) (this=0xbffff720, 
    receiver=0x8316540, e=0xbffff040) at kernel/qapplication.cpp:2502
#23 0x406f348c in KApplication::notify(QObject*, QEvent*) ()
   from /home/tpr/kdecvshead/lib/libkdecore.so.4
#24 0x40b31f27 in QApplication::sendEvent(QObject*, QEvent*) (
    receiver=0x8316540, event=0xbffff040) at qapplication.h:490
#25 0x40baabd0 in qt_dispatchEnterLeave(QWidget*, QWidget*) (enter=0x8316540, 
    leave=0x8288ed0) at kernel/qapplication.cpp:3588
#26 0x40b283e9 in QApplication::x11ProcessEvent(_XEvent*) (this=0xbffff720, 
    event=0xbffff3a0) at kernel/qapplication_x11.cpp:3551
#27 0x40b44e96 in QEventLoop::processEvents(unsigned) (this=0x807acd0, flags=4)
    at kernel/qeventloop_x11.cpp:192
#28 0x40bbfb62 in QEventLoop::enterLoop() (this=0x807acd0)
    at kernel/qeventloop.cpp:198
#29 0x40bbfa7e in QEventLoop::exec() (this=0x807acd0)
    at kernel/qeventloop.cpp:145
#30 0x40ba8d29 in QApplication::exec() (this=0xbffff720)
    at kernel/qapplication.cpp:2737
#31 0x41794514 in kdemain ()
   from /home/tpr/kdecvshead/lib/libkdeinit_konqueror.so
#32 0x408988b6 in kdeinitmain ()
   from /home/tpr/kdecvshead/lib/kde3/konqueror.so
#33 0x0804cffa in launch(int, char const*, char const*, char const*, int, char const*, bool, char const*, bool, char const*) ()
#34 0x0804e06f in handle_launcher_request(int) ()
#35 0x0804e5df in handle_requests(int) ()
#36 0x0804f6c5 in main ()