Feisty: Kicker crashed when trying to print a lot of colour images (Backtrace attached)

Opening five attached images in KMail (opening in Gwenview) first caused KMail to crash; once I restarted that (sorry didn't save the backtrace) I tried to open the last attached image. This caused Kicker to crash, and I am not really sure why.

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Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
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[Thread debugging using libthread_db enabled]
[New Thread -1232742176 (LWP 6711)]
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[KCrash handler]
#6 0xb5ed04c4 in TaskContainer::updateKickerTip ()
   from /usr/lib/libtaskbar.so.1
#7 0xb66f8f72 in KickerTip::display () from /usr/lib/libkickermain.so.1
#8 0xb66f94ef in KickerTip::qt_invoke () from /usr/lib/libkickermain.so.1
#9 0xb726288b in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#10 0xb7263330 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#11 0xb75f0a5a in QTimer::timeout () from /usr/lib/libqt-mt.so.3
#12 0xb728a596 in QTimer::event () from /usr/lib/libqt-mt.so.3
#13 0xb71f9a60 in QApplication::internalNotify () from /usr/lib/libqt-mt.so.3
#14 0xb71fb88f in QApplication::notify () from /usr/lib/libqt-mt.so.3
#15 0xb7901ce2 in KApplication::notify () from /usr/lib/libkdecore.so.4
#16 0xb718c1e9 in QApplication::sendEvent () from /usr/lib/libqt-mt.so.3
#17 0xb71ec4ab in QEventLoop::activateTimers () from /usr/lib/libqt-mt.so.3
#18 0xb71a0d25 in QEventLoop::processEvents () from /usr/lib/libqt-mt.so.3
#19 0xb7214136 in QEventLoop::enterLoop () from /usr/lib/libqt-mt.so.3
#20 0xb7213f46 in QEventLoop::exec () from /usr/lib/libqt-mt.so.3
#21 0xb71fb609 in QApplication::exec () from /usr/lib/libqt-mt.so.3
#22 0xb66077c2 in kdemain () from /usr/lib/libkdeinit_kicker.so
#23 0xb6714464 in kdeinitmain () from /usr/lib/kde3/kicker.so
#24 0x0804e6bf in ?? ()
#25 0x00000001 in ?? ()
#26 0x08084478 in ?? ()
#27 0x00000001 in ?? ()
#28 0x00000000 in ?? ()