Application that crashed: dolphin
Version of the application: 1.3
KDE Version: 4.3.1 (KDE 4.3.1)
Qt Version: 4.5.2
Operating System: Linux 2.6.28.9-tuxonice i686
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
double click to create a new tab, then crash.
I've come to this for at least two times.

 -- Backtrace:
Application: Dolphin (dolphin), signal: Segmentation fault
[KCrash Handler]
#6  0xb6ebebb7 in ?? () from /usr/lib/libQtGui.so.4
#7  0xb6ebf72f in ?? () from /usr/lib/libQtGui.so.4
#8  0xb6ebfeea in QTabBar::setTabText () from /usr/lib/libQtGui.so.4
#9  0xb77d9077 in ?? () from /usr/lib/libkdeui.so.5
#10 0xb77db157 in ?? () from /usr/lib/libkdeui.so.5
#11 0xb77db254 in KAcceleratorManager::manage () from /usr/lib/libkdeui.so.5
#12 0xb77dc488 in ?? () from /usr/lib/libkdeui.so.5
#13 0xb77dc81a in ?? () from /usr/lib/libkdeui.so.5
#14 0xb77dc8fb in ?? () from /usr/lib/libkdeui.so.5
#15 0xb683a1b8 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#16 0xb683ae42 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#17 0xb6876687 in QTimer::timeout () from /usr/lib/libQtCore.so.4
#18 0xb68405ce in QTimer::timerEvent () from /usr/lib/libQtCore.so.4
#19 0xb683516f in QObject::event () from /usr/lib/libQtCore.so.4
#20 0xb6a3bd3c in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#21 0xb6a4403e in QApplication::notify () from /usr/lib/libQtGui.so.4
#22 0xb778285d in KApplication::notify () from /usr/lib/libkdeui.so.5
#23 0xb6824bcb in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#24 0xb6853d51 in ?? () from /usr/lib/libQtCore.so.4
#25 0xb68503a0 in ?? () from /usr/lib/libQtCore.so.4
#26 0xb5fa0b88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#27 0xb5fa40eb in ?? () from /usr/lib/libglib-2.0.so.0
#28 0xb5fa4268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#29 0xb68502f8 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#30 0xb6adda75 in ?? () from /usr/lib/libQtGui.so.4
#31 0xb68231fa in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#32 0xb6823642 in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#33 0xb6825ae9 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#34 0xb6a3bbb7 in QApplication::exec () from /usr/lib/libQtGui.so.4
#35 0x0807aaff in _start ()

Reported using DrKonqi