Application that crashed: kontact
Version of the application: 4.3.2
KDE Version: 4.3.2 (KDE 4.3.2)
Qt Version: 4.5.2
Operating System: Linux 2.6.31-16-generic x86_64
Distribution: Ubuntu 9.10

What I was doing when the application crashed:
I had just sent a message and saved it from the Sent folder in Kmail to the file browser in Ubuntu Linux. I then clicked on the same message in the Sent folder a second time. KDE Kontact then crashed.

 I was running KDE Kontact on Ubuntu Linux 9.10, 64 bit version. The CPU is an
Intel Core 2 Duo unit. The motherboard is model no. K5B made by Asus.

The following applications were running on my computer system:

1. Gnome File Browser.
2. KDE Kontact.
3. Firefox.
4. Thunderbird.
5. Openoffice.org Calc.
6. Gnome Text Editor.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
The current source language is "auto; currently c".
[KCrash Handler]
#5  0x00007fb60813cbc1 in KMail::MessageListView::Widget::viewStartDragRequest (this=<value optimized out>) at ../../kmail/messagelistview/widget.cpp:776
#6  0x00007fb60818726d in KMail::MessageListView::Core::View::mouseMoveEvent (this=0x1295420, e=<value optimized out>) at ../../kmail/messagelistview/core/view.cpp:2074
#7  0x00007fb623893822 in QWidget::event (this=0x1295420, event=0x7fff4589b0e0) at kernel/qwidget.cpp:7534
#8  0x00007fb623bef2a6 in QFrame::event (this=0x1295420, e=0x7fff4589b0e0) at widgets/qframe.cpp:559
#9  0x00007fb623d2221b in QAbstractItemView::viewportEvent (this=0x1295420, event=0x7fff4589b0e0) at itemviews/qabstractitemview.cpp:1476
#10 0x00007fb623d59420 in QTreeView::viewportEvent (this=0x1295420, event=0x7fff4589b0e0) at itemviews/qtreeview.cpp:1266
#11 0x00007fb622f23f47 in QCoreApplicationPrivate::sendThroughObjectEventFilters (this=<value optimized out>, receiver=0x162e340, event=0x7fff4589b0e0) at kernel/qcoreapplication.cpp:726
#12 0x00007fb623844ecc in QApplicationPrivate::notify_helper (this=0xfb3670, receiver=0x162e340, e=0x7fff4589b0e0) at kernel/qapplication.cpp:4052
#13 0x00007fb62384c011 in QApplication::notify (this=<value optimized out>, receiver=0x162e340, e=0x7fff4589b0e0) at kernel/qapplication.cpp:3758
#14 0x00007fb62447bab6 in KApplication::notify (this=0x7fff4589d000, receiver=0x162e340, event=0x7fff4589b0e0) at ../../kdeui/kernel/kapplication.cpp:302
#15 0x00007fb622f24c2c in QCoreApplication::notifyInternal (this=0x7fff4589d000, receiver=0x162e340, event=0x7fff4589b0e0) at kernel/qcoreapplication.cpp:610
#16 0x00007fb62384b8e0 in QCoreApplication::sendSpontaneousEvent (receiver=0x162e340, event=0x7fff4589b0e0, alienWidget=0x162e340, nativeWidget=0xfb7970, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:216
#17 QApplicationPrivate::sendMouseEvent (receiver=0x162e340, event=0x7fff4589b0e0, alienWidget=0x162e340, nativeWidget=0xfb7970, buttonDown=<value optimized out>, 
    lastMouseReceiver=<value optimized out>) at kernel/qapplication.cpp:2924
#18 0x00007fb6238b1a0e in QETWidget::translateMouseEvent (this=0xfb7970, event=<value optimized out>) at kernel/qapplication_x11.cpp:4409
#19 0x00007fb6238b0aa9 in QApplication::x11ProcessEvent (this=<value optimized out>, event=0x7fff4589cc10) at kernel/qapplication_x11.cpp:3550
#20 0x00007fb6238d9d0c in x11EventSourceDispatch (s=<value optimized out>, callback=<value optimized out>, user_data=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:146
#21 0x00007fb61c79ebbe in g_main_context_dispatch () from /lib/libglib-2.0.so.0
#22 0x00007fb61c7a2588 in ?? () from /lib/libglib-2.0.so.0
#23 0x00007fb61c7a26b0 in g_main_context_iteration () from /lib/libglib-2.0.so.0
#24 0x00007fb622f4d1a6 in QEventDispatcherGlib::processEvents (this=0xf7fcb0, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:327
#25 0x00007fb6238d94be in QGuiEventDispatcherGlib::processEvents (this=0x0, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:202
#26 0x00007fb622f23532 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:149
#27 0x00007fb622f23904 in QEventLoop::exec (this=0x7fff4589cf40, flags=) at kernel/qeventloop.cpp:201
#28 0x00007fb622f25ab9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#29 0x0000000000403f47 in main (argc=<value optimized out>, argv=<value optimized out>) at ../../../kontact/src/main.cpp:218

Reported using DrKonqi