Application that crashed: kontact
Version of the application: 4.3.2
KDE Version: 4.3.1 (KDE 4.3.1) "release 6"
Qt Version: 4.5.3
Operating System: Linux 2.6.31.5-0.1-desktop i686
Distribution: "openSUSE 11.2 (i586)"

What I was doing when the application crashed:
I finished reading articles from one feed and selected an other feed to display article list and thanKontact/Akregator crashed.
This time I have not used Ctrl-E to flag articles as read on the old feed, since I actually readed all articles from the old feed. 
This time I did not have selected any article, with a middle mouse click,  from the new feed for bacground tab-reading.

Hopefully this helps

Regards, Frans

 -- Backtrace:
Application: Kontact (kontact), signal: Segmentation fault
[KCrash Handler]
#6  0xafc2d254 in Akregator::Article::title (this=0x987cd88) at /usr/src/debug/kdepim-4.3.1/akregator/src/article.cpp:375
#7  0xafc3a248 in Akregator::ArticleModel::Private::Private (this=0xace7108, articles_=..., qq=0x0) at /usr/src/debug/kdepim-4.3.1/akregator/src/articlemodel.cpp:66
#8  0xafc3a3af in Akregator::ArticleModel::ArticleModel (this=0x9fffed0, articles=..., parent=0x0) at /usr/src/debug/kdepim-4.3.1/akregator/src/articlemodel.cpp:69
#9  0xafc5bec1 in Akregator::SelectionController::articleHeadersAvailable (this=0x8b4ff28, job=0x9fffed0) at /usr/src/debug/kdepim-4.3.1/akregator/src/selectioncontroller.cpp:208
#10 0xafc5c2d5 in Akregator::SelectionController::qt_metacall (this=0x8b4ff28, _c=InvokeMetaMethod, _id=15, _a=0xbfa80538)
    at /usr/src/debug/kdepim-4.3.1/build/akregator/src/selectioncontroller.moc:86
#11 0xb6e7d864 in QMetaObject::activate (sender=0x845b360, from_signal_index=4, to_signal_index=4, argv=0xbfa80538) at kernel/qobject.cpp:3113
#12 0xb6e7e585 in QMetaObject::activate (sender=0x845b360, m=0xb71d0d68, local_signal_index=0, argv=0xbfa80538) at kernel/qobject.cpp:3187
#13 0xb7032495 in KJob::finished(KJob*) () from /usr/lib/libkdecore.so.5
#14 0xb70327ad in KJob::emitResult() () from /usr/lib/libkdecore.so.5
#15 0xafc344ff in Akregator::ArticleListJob::doList (this=0x845b360) at /usr/src/debug/kdepim-4.3.1/akregator/src/articlejobs.cpp:190
#16 0xafc34656 in Akregator::ArticleListJob::qt_metacall (this=0x845b360, _c=InvokeMetaMethod, _id=26, _a=0xbfa8064c) at /usr/src/debug/kdepim-4.3.1/build/akregator/src/articlejobs.moc:215
#17 0xb6e7d864 in QMetaObject::activate (sender=0x9305530, from_signal_index=4, to_signal_index=4, argv=0x0) at kernel/qobject.cpp:3113
#18 0xb6e7e585 in QMetaObject::activate (sender=0x9305530, m=0xb6f59908, local_signal_index=0, argv=0x0) at kernel/qobject.cpp:3187
#19 0xb6e82b25 in QSingleShotTimer::timeout (this=0x9305530) at .moc/release-shared/qtimer.moc:76
#20 0xb6e82c5c in QSingleShotTimer::timerEvent (this=0x9305530) at kernel/qtimer.cpp:298
#21 0xb6e7751b in QObject::event (this=0x9305530, e=0xbfa80ad4) at kernel/qobject.cpp:1075
#22 0xb64ad8fc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#23 0xb64b534e in QApplication::notify(QObject*, QEvent*) () from /usr/lib/libQtGui.so.4
#24 0xb73a1ce1 in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#25 0xb6e6732e in QCoreApplication::notifyInternal (this=0xbfa80e24, receiver=0x9305530, event=0xbfa80ad4) at kernel/qcoreapplication.cpp:610
#26 0xb6e96356 in sendEvent (event=<value optimized out>, receiver=<value optimized out>) at kernel/qcoreapplication.h:213
#27 QTimerInfoList::activateTimers (event=<value optimized out>, receiver=<value optimized out>) at kernel/qeventdispatcher_unix.cpp:594
#28 0xb6e93325 in timerSourceDispatch (source=0x8074c70) at kernel/qeventdispatcher_glib.cpp:184
#29 idleTimerSourceDispatch (source=0x8074c70) at kernel/qeventdispatcher_glib.cpp:231
#30 0xb47b74c2 in g_main_dispatch (context=<value optimized out>) at gmain.c:1960
#31 IA__g_main_context_dispatch (context=<value optimized out>) at gmain.c:2513
#32 0xb47bad98 in g_main_context_iterate (context=0x8073e90, block=<value optimized out>, dispatch=1, self=0x807f330) at gmain.c:2591
#33 0xb47baebe in IA__g_main_context_iteration (context=0x8073e90, may_block=1) at gmain.c:2654
#34 0xb6e93011 in QEventDispatcherGlib::processEvents (this=0x80541c0, flags=...) at kernel/qeventdispatcher_glib.cpp:407
#35 0xb654f29a in ?? () from /usr/lib/libQtGui.so.4
#36 0xb6e6598d in QEventLoop::processEvents (this=0xbfa80d84, flags=) at kernel/qeventloop.cpp:149
#37 0xb6e65dd9 in QEventLoop::exec (this=0xbfa80d84, flags=...) at kernel/qeventloop.cpp:201
#38 0xb6e68270 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:888
#39 0xb64ad774 in QApplication::exec() () from /usr/lib/libQtGui.so.4
#40 0x0804b546 in _start ()

Reported using DrKonqi