Application that crashed: kontact
Version of the application: 4.3.2
KDE Version: 4.3.1 (KDE 4.3.1) "release 183"
Qt Version: 4.5.3
Operating System: Linux 2.6.27.29-0.1-default x86_64
Distribution: "openSUSE 11.1 (x86_64)"

What I was doing when the application crashed:
Have standard POP account. Received email from YahooGroup with a Word DOC attachment. This appeared as a link--not an attachment. Clicked the link and an Open With dialog appeared (DOCs are associated with OpenOffice Writer). Selected OOo Writer, and Kontact crashed. The attachment opened.

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#5  KIO::Slave::deref (this=0x2967c40) at /usr/src/debug/kdelibs-4.3.1/kio/kio/slave.cpp:242
#6  0x00007f5853d446cf in KIO::Slave::gotInput (this=0x2967c40) at /usr/src/debug/kdelibs-4.3.1/kio/kio/slave.cpp:335
#7  0x00007f5853d46928 in KIO::Slave::qt_metacall (this=0x2967c40, _c=QMetaObject::InvokeMetaMethod, _id=1, _a=0x7fffc6e55190) at /usr/src/debug/kdelibs-4.3.1/build/kio/slave.moc:76
#8  0x00007f5852985ee2 in QMetaObject::activate(QObject*, int, int, void**) () from /usr/lib64/libQtCore.so.4
#9  0x00007f5853c60091 in KIO::ConnectionPrivate::dequeue (this=0x2ea1390) at /usr/src/debug/kdelibs-4.3.1/kio/kio/connection.cpp:82
#10 0x00007f5853c604ea in KIO::Connection::qt_metacall (this=0x37a93b0, _c=QMetaObject::InvokeMetaMethod, _id=1, _a=0x23645f0) at /usr/src/debug/kdelibs-4.3.1/build/kio/connection.moc:73
#11 0x00007f58529810a8 in QObject::event(QEvent*) () from /usr/lib64/libQtCore.so.4
#12 0x00007f585168ea4d in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#13 0x00007f5851696cda in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQtGui.so.4
#14 0x00007f58537b1a8b in KApplication::notify (this=0x7fffc6e55bf0, receiver=0x37a93b0, event=0x38654b0) at /usr/src/debug/kdelibs-4.3.1/kdeui/kernel/kapplication.cpp:302
#15 0x00007f585297115c in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib64/libQtCore.so.4
#16 0x00007f5852971dda in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib64/libQtCore.so.4
#17 0x00007f585299a9b3 in ?? () from /usr/lib64/libQtCore.so.4
#18 0x00007f584bfdf0fb in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0
#19 0x00007f584bfe28cd in ?? () from /usr/lib64/libglib-2.0.so.0
#20 0x00007f584bfe2a8b in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0
#21 0x00007f585299a56c in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#22 0x00007f5851725fdf in ?? () from /usr/lib64/libQtGui.so.4
#23 0x00007f585296f9e2 in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#24 0x00007f585296fdb4 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQtCore.so.4
#25 0x00007f58529720a4 in QCoreApplication::exec() () from /usr/lib64/libQtCore.so.4
#26 0x0000000000404995 in main (argc=1, argv=0x7fffc6e562d8) at /usr/src/debug/kdepim-4.3.1/kontact/src/main.cpp:218

Reported using DrKonqi