Version:            (using KDE KDE 3.5.2)
Installed from:    Ubuntu Packages
OS:                Linux

All mails in in-folder are marked for filtering. Starting filtering shows mouse-pointer-wheel. After a moment, the programm is still running, mouseclick into Folderbar, Subfolders. That crashes kontact. Does that say something to You?:

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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 -1241479488 (LWP 6694)]
[New Thread -1280500816 (LWP 6698)]
[New Thread -1272108112 (LWP 6697)]
[New Thread -1263715408 (LWP 6696)]
[New Thread -1255322704 (LWP 6695)]
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[KCrash handler]
#6  0xb55ac6d3 in KMMessage::transferInProgress ()
   from /usr/lib/libkmailprivate.so
#7  0xb56341ff in KMHeaders::applyFiltersOnMsg ()
   from /usr/lib/libkmailprivate.so
#8  0xb57af988 in KMMainWidget::slotApplyFilters ()
   from /usr/lib/libkmailprivate.so
#9  0xb57c6ac8 in KMMainWidget::qt_invoke () from /usr/lib/libkmailprivate.so
#10 0xb705b051 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#11 0xb705baec in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#12 0xb688d8a7 in KAction::activated () from /usr/lib/libkdeui.so.4
#13 0xb68c3674 in KAction::slotActivated () from /usr/lib/libkdeui.so.4
#14 0xb68df039 in KAction::qt_invoke () from /usr/lib/libkdeui.so.4
#15 0xb705b051 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#16 0xb705baec in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#17 0xb76354c5 in KAccelPrivate::menuItemActivated ()
   from /usr/lib/libkdecore.so.4
#18 0xb766cc08 in KAccelPrivate::emitActivatedSignal ()
   from /usr/lib/libkdecore.so.4
#19 0xb76c79ad in KAccelPrivate::eventFilter () from /usr/lib/libkdecore.so.4
#20 0xb705819a in QObject::activate_filters () from /usr/lib/libqt-mt.so.3
#21 0xb7058218 in QObject::event () from /usr/lib/libqt-mt.so.3
#22 0xb7095742 in QWidget::event () from /usr/lib/libqt-mt.so.3
#23 0xb71678fa in QMainWindow::event () from /usr/lib/libqt-mt.so.3
#24 0xb6ff0f3e in QApplication::internalNotify () from /usr/lib/libqt-mt.so.3
#25 0xb6ff12d6 in QApplication::notify () from /usr/lib/libqt-mt.so.3
#26 0xb76eed7d in KApplication::notify () from /usr/lib/libkdecore.so.4
#27 0xb766c9cd in KAccelEventHandler::x11Event ()
   from /usr/lib/libkdecore.so.4
#28 0xb76ed36e in KApplication::x11EventFilter ()
   from /usr/lib/libkdecore.so.4
#29 0xb6f6e457 in qt_set_x11_event_filter () from /usr/lib/libqt-mt.so.3
#30 0xb6f7b74c in QApplication::x11ProcessEvent () from /usr/lib/libqt-mt.so.3
#31 0xb6f954db in QEventLoop::processEvents () from /usr/lib/libqt-mt.so.3
#32 0xb7009a2f in QEventLoop::enterLoop () from /usr/lib/libqt-mt.so.3
#33 0xb7009952 in QEventLoop::exec () from /usr/lib/libqt-mt.so.3
#34 0xb6fefa4d in QApplication::exec () from /usr/lib/libqt-mt.so.3
#35 0x0805ab01 in ?? ()
#36 0xbf858640 in ?? ()
#37 0x00000001 in ?? ()
#38 0x00000001 in ?? ()
#39 0x00000000 in ?? ()