Version:           1.9.1 (using KDE 3.5.2, Gentoo)
Compiler:          gcc version 3.4.5 (Gentoo 3.4.5-r1, ssp-3.4.5-1.0, pie-8.7.9)
OS:                Linux (i686) release 2.6.16-gentoo-r1

I pressed the "-"-key to select the next/previous unread message in my IMAP inbox and KMail crashed.  The backtrace:

(no debugging symbols found)
Using host libthread_db library "/lib/tls/libthread_db.so.1".
(no debugging symbols found)
`system-supplied DSO at 0xffffe000' has disappeared; keeping its symbols.
(no debugging symbols found)
(no debugging symbols found)
[Thread debugging using libthread_db enabled]
[New Thread -1254024992 (LWP 24033)]
[New Thread -1280820304 (LWP 24085)]
[New Thread -1272427600 (LWP 24084)]
[New Thread -1264034896 (LWP 24083)]
[New Thread -1255642192 (LWP 24082)]
[KCrash handler]
#6  0x6172646e in ?? ()
#7  0xb7d77efe in KMail::ImapJob::slotGetNextMessage ()
   from /usr/kde/3.5/lib/libkmailprivate.so
#8  0xb7d78c84 in KMail::ImapJob::init ()
   from /usr/kde/3.5/lib/libkmailprivate.so
#9  0xb7d7944e in KMail::ImapJob::execute ()
   from /usr/kde/3.5/lib/libkmailprivate.so
#10 0xb7d6e65d in KMail::FolderJob::start ()
   from /usr/kde/3.5/lib/libkmailprivate.so
#11 0xb7c9bdb5 in KMFolderImap::doCreateJob ()
   from /usr/kde/3.5/lib/libkmailprivate.so
#12 0xb7c19593 in FolderStorage::createJob ()
   from /usr/kde/3.5/lib/libkmailprivate.so
#13 0xb7bfa320 in KMFolder::createJob ()
   from /usr/kde/3.5/lib/libkmailprivate.so
#14 0xb7d5288f in KMMainWidget::slotMsgSelected ()
   from /usr/kde/3.5/lib/libkmailprivate.so
#15 0xb7d6205e in KMMainWidget::qt_invoke ()
   from /usr/kde/3.5/lib/libkmailprivate.so
#16 0xb5c3fc54 in QObject::activate_signal () from /usr/qt/3/lib/libqt-mt.so.3
#17 0xb7bc02d5 in KMHeaders::selected ()
   from /usr/kde/3.5/lib/libkmailprivate.so
#18 0xb7bc042b in KMHeaders::highlightMessage ()
   from /usr/kde/3.5/lib/libkmailprivate.so
#19 0xb7bc080c in KMHeaders::highlightMessage ()
   from /usr/kde/3.5/lib/libkmailprivate.so
#20 0xb7bccb1b in KMHeaders::qt_invoke ()
   from /usr/kde/3.5/lib/libkmailprivate.so
#21 0xb5c3fc54 in QObject::activate_signal () from /usr/qt/3/lib/libqt-mt.so.3
#22 0xb5fa9fe0 in QListView::currentChanged ()
   from /usr/qt/3/lib/libqt-mt.so.3
#23 0xb5d318d2 in QListView::setCurrentItem ()
   from /usr/qt/3/lib/libqt-mt.so.3
#24 0xb5d33d51 in QListView::contentsMousePressEventEx ()
   from /usr/qt/3/lib/libqt-mt.so.3
#25 0xb5d34744 in QListView::contentsMousePressEvent ()
   from /usr/qt/3/lib/libqt-mt.so.3
#26 0xb65e6cbc in KListView::contentsMousePressEvent ()
   from /usr/kde/3.5/lib/libkdeui.so.4
#27 0xb7bc0952 in KMHeaders::contentsMousePressEvent ()
   from /usr/kde/3.5/lib/libkmailprivate.so
#28 0xb5d5c4a1 in QScrollView::viewportMousePressEvent ()
   from /usr/qt/3/lib/libqt-mt.so.3
#29 0xb5d5eb9e in QScrollView::eventFilter () from /usr/qt/3/lib/libqt-mt.so.3
#30 0xb5d2be08 in QListView::eventFilter () from /usr/qt/3/lib/libqt-mt.so.3
#31 0xb7bbbaf6 in KMHeaders::eventFilter ()
   from /usr/kde/3.5/lib/libkmailprivate.so
#32 0xb5c3d01f in QObject::activate_filters ()
   from /usr/qt/3/lib/libqt-mt.so.3
#33 0xb5c3d0f2 in QObject::event () from /usr/qt/3/lib/libqt-mt.so.3
#34 0xb5c78b3c in QWidget::event () from /usr/qt/3/lib/libqt-mt.so.3
#35 0xb5bdb62f in QApplication::internalNotify ()
   from /usr/qt/3/lib/libqt-mt.so.3
#36 0xb5bdb9e5 in QApplication::notify () from /usr/qt/3/lib/libqt-mt.so.3
#37 0xb62acee5 in KApplication::notify ()
   from /usr/kde/3.5/lib/libkdecore.so.4
#38 0xb5b74d07 in QETWidget::translateMouseEvent ()
   from /usr/qt/3/lib/libqt-mt.so.3
#39 0xb5b735de in QApplication::x11ProcessEvent ()
   from /usr/qt/3/lib/libqt-mt.so.3
#40 0xb5b87756 in QEventLoop::processEvents ()
   from /usr/qt/3/lib/libqt-mt.so.3
#41 0xb5bf1d02 in QEventLoop::enterLoop () from /usr/qt/3/lib/libqt-mt.so.3
#42 0xb5bf1c56 in QEventLoop::exec () from /usr/qt/3/lib/libqt-mt.so.3
#43 0xb5bda7df in QApplication::exec () from /usr/qt/3/lib/libqt-mt.so.3
#44 0x0804aa6e in ?? ()
#45 0xbfc0c280 in ?? ()
#46 0x00000000 in ?? ()