Application that crashed: kontact
Version of the application: 4.3.0 pre
KDE Version: 4.2.90 (KDE 4.2.90 (KDE 4.3 Beta2))
Qt Version: 4.5.0
Operating System: Linux 2.6.28-11-generic x86_64
Distribution: Ubuntu 9.04

What I was doing when the application crashed:
I was looking a preview of an image inside the kdelook website, this is the link: http://www.kde-look.org/content/preview.php?preview=1&id=107015&file1=107015-1.jpg&file2=&file3=&name=Waterlights

 -- Backtrace:
Application: Kontact (kontact), signal: Aborted
[KCrash Handler]
#5  0x0000003001232fb5 in raise () from /lib/libc.so.6
#6  0x0000003001234bc3 in abort () from /lib/libc.so.6
#7  0x0000003001277ce0 in ?? () from /lib/libc.so.6
#8  0x00007fb9711937d9 in KHTMLPart::~KHTMLPart () from /usr/lib/libkhtml.so.5
#9  0x0000003009365865 in QObject::event () from /usr/lib/libQtCore.so.4
#10 0x000000300b3d678d in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#11 0x000000300b3de97a in QApplication::notify () from /usr/lib/libQtGui.so.4
#12 0x00007fb96e4c806b in KApplication::notify () from /usr/lib/libkdeui.so.5
#13 0x000000300935575c in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#14 0x00000030093563ca in QCoreApplicationPrivate::sendPostedEvents () from /usr/lib/libQtCore.so.4
#15 0x000000300937f1e3 in ?? () from /usr/lib/libQtCore.so.4
#16 0x000000300423a20a in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#17 0x000000300423d8e0 in ?? () from /usr/lib/libglib-2.0.so.0
#18 0x000000300423da7c in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#19 0x000000300937ee6f in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#20 0x000000300b46ebef in ?? () from /usr/lib/libQtGui.so.4
#21 0x0000003009354002 in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#22 0x00000030093543cd in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#23 0x0000003009356694 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#24 0x0000000000404945 in _start ()

Reported using DrKonqi