Version:           1.9.5 (using KDE 3.5.5, Debian Package 4:3.5.5a.dfsg.1-5 (4.0))
Compiler:          Target: i486-linux-gnu
OS:                Linux (i686) release 2.6.18p4s

I wrote an e-mail answering another one on a gmame newsgroup. I attached a file and then pressed send.

I had this backtrace upon the SIGABRT:
Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread -1510644032 (LWP 5464)]
[New Thread -1575515216 (LWP 6521)]
[New Thread -1552467024 (LWP 5593)]
[New Thread -1544074320 (LWP 5592)]
[New Thread -1535681616 (LWP 5591)]
[New Thread -1527288912 (LWP 5590)]
0xa7f49410 in __kernel_vsyscall ()
#0  0xa7f49410 in __kernel_vsyscall ()
#1  0xa780108e in pthread_exit () from /lib/tls/i686/cmov/libc.so.6
#2  0xa72d9c02 in QGArray::assign (this=0x8bb52f0, a=@0xafc12040)
    at tools/qgarray.cpp:355
#3  0xa75e4eb2 in KConfig::putData (this=0x8bb52a0, _key=@0xafc12028, 
    _data=@0xafc12040, _checkGroup=true)
    at /usr/share/qt3/include/qmemarray.h:79
#4  0xa762948a in KConfigBase::writeEntry (this=0x89508d0, 
    pKey=0xa00e6780 "Width 1280", value=@0xafc120dc, bPersistent=true, 
    bGlobal=false, bNLS=false)
    at /home/ana/Debian/kdelibs/kdelibs-3.5.5a.dfsg.1/./kdecore/kconfigbase.cpp:1048
#5  0xa762b5e1 in KConfigBase::writeEntry (this=0x89508d0, pKey=@0xafc1214c, 
    value=@0xafc120dc, bPersistent=true, bGlobal=false, bNLS=false)
    at /home/ana/Debian/kdelibs/kdelibs-3.5.5a.dfsg.1/./kdecore/kconfigbase.cpp:1017
#6  0xa762bba4 in KConfigBase::writeEntry (this=0x89508d0, pKey=@0xafc1214c, 
    nValue=786, bPersistent=true, bGlobal=false, bNLS=false)
    at /home/ana/Debian/kdelibs/kdelibs-3.5.5a.dfsg.1/./kdecore/kconfigbase.cpp:1413
#7  0xa68733ee in KMainWindow::saveWindowSize (this=0xa1880e58, 
    config=0x89508d0)
    at /home/ana/Debian/kdelibs/kdelibs-3.5.5a.dfsg.1/./kdeui/kmainwindow.cpp:926
#8  0xa68e6a6a in KMainWindow::saveMainWindowSettings (this=0xa1880e58, 
    config=0x89508d0, configGroup=@0x806a798)
    at /home/ana/Debian/kdelibs/kdelibs-3.5.5a.dfsg.1/./kdeui/kmainwindow.cpp:729
#9  0xa22587b5 in ~KNComposer (this=0xa1880e58)
    at /tmp/buildd/kdepim-3.5.5.dfsg.1/./knode/kncomposer.cpp:406
#10 0xa22a33d4 in KNArticleFactory::slotComposerDone (this=0x8c55bd8, 
    com=0xa1880e58)
    at /tmp/buildd/kdepim-3.5.5.dfsg.1/./knode/knarticlefactory.cpp:1050
#11 0xa22a3552 in KNArticleFactory::qt_invoke (this=0x8c55bd8, _id=2, 
    _o=0xafc12314) at ./knarticlefactory.moc:89
#12 0xa6fe7cb3 in QObject::activate_signal (this=0xa1880e58, 
    clist=0xa008dbf8, o=0xafc12314) at kernel/qobject.cpp:2356
#13 0xa2205e2e in KNComposer::composerDone (this=0xa1880e58, t0=0xa1880e58)
    at ./kncomposer.moc:241
#14 0xa2235656 in KNComposer::slotSendNow (this=0xa1880e58)
    at /tmp/buildd/kdepim-3.5.5.dfsg.1/./knode/kncomposer.cpp:1039
#15 0xa22ac724 in KNComposer::qt_invoke (this=0xa1880e58, _id=73, 
    _o=0xafc1242c) at ./kncomposer.moc:247
#16 0xa6fe7cb3 in QObject::activate_signal (this=0xa003bd38, 
    clist=0xa003c2d0, o=0xafc1242c) at kernel/qobject.cpp:2356
#17 0xa6fe8744 in QObject::activate_signal (this=0xa003bd38, signal=2)
    at kernel/qobject.cpp:2325
#18 0xa67ff259 in KAction::activated (this=0xa003bd38) at ./kaction.moc:176
#19 0xa6834971 in KAction::slotActivated (this=0xa003bd38)
    at /home/ana/Debian/kdelibs/kdelibs-3.5.5a.dfsg.1/./kdeui/kaction.cpp:1102
#20 0xa683490d in KAction::slotButtonClicked (this=0xa003bd38, 
    state=LeftButton)
    at /home/ana/Debian/kdelibs/kdelibs-3.5.5a.dfsg.1/./kdeui/kaction.cpp:1147
#21 0xa6914fe6 in KAction::qt_invoke (this=0xa003bd38, _id=17, _o=0xafc12530)
    at ./kaction.moc:220
#22 0xa6fe7cb3 in QObject::activate_signal (this=0xa006f0c8, 
    clist=0xa006f870, o=0xafc12530) at kernel/qobject.cpp:2356
#23 0xa683604e in KToolBarButton::buttonClicked (this=0xa006f0c8, t0=-282, 
    t1=LeftButton) at ./ktoolbarbutton.moc:154
#24 0xa6836358 in KToolBarButton::mouseReleaseEvent (this=0xa006f0c8, 
    e=0xafc129f4)
    at /home/ana/Debian/kdelibs/kdelibs-3.5.5a.dfsg.1/./kdeui/ktoolbarbutton.cpp:479
#25 0xa701e654 in QWidget::event (this=0xa006f0c8, e=0xafc129f4)
    at kernel/qwidget.cpp:4702
#26 0xa68b0ae1 in KToolBarButton::event (this=0x0, e=0x2)
    at /home/ana/Debian/kdelibs/kdelibs-3.5.5a.dfsg.1/./kdeui/ktoolbarbutton.cpp:651
#27 0xa6f7fbd6 in QApplication::internalNotify (this=0xafc12fcc, 
    receiver=0xa006f0c8, e=0xafc129f4) at kernel/qapplication.cpp:2635
#28 0xa6f81d79 in QApplication::notify (this=0xafc12fcc, receiver=0xa006f0c8, 
    e=0xafc129f4) at kernel/qapplication.cpp:2421
#29 0xa76a7e0e in KApplication::notify (this=0xafc12fcc, receiver=0xa006f0c8, 
    event=0xafc129f4)
    at /home/ana/Debian/kdelibs/kdelibs-3.5.5a.dfsg.1/./kdecore/kapplication.cpp:550
#30 0xa6f13445 in QApplication::sendSpontaneousEvent (receiver=0xa006f0c8, 
    event=0xafc129f4) at kernel/qapplication.h:523
#31 0xa6f120df in QETWidget::translateMouseEvent (this=0xa006f0c8, 
    event=0xafc12e28) at kernel/qapplication_x11.cpp:4301
#32 0xa6f10660 in QApplication::x11ProcessEvent (this=0xafc12fcc, 
    event=0xafc12e28) at kernel/qapplication_x11.cpp:3478
#33 0xa6f26cb2 in QEventLoop::processEvents (this=0x807f5d0, flags=4)
    at kernel/qeventloop_x11.cpp:192
#34 0xa6f9a129 in QEventLoop::enterLoop (this=0x807f5d0)
    at kernel/qeventloop.cpp:198
#35 0xa6f99f4a in QEventLoop::exec (this=0x807f5d0)
    at kernel/qeventloop.cpp:145
#36 0xa6f8176f in QApplication::exec (this=0xafc12fcc)
    at kernel/qapplication.cpp:2758
#37 0x0805ac3f in main (argc=)
    at /tmp/buildd/kdepim-3.5.5.dfsg.1/./kontact/src/main.cpp:161
#38 0xa773dea8 in __libc_start_main () from /lib/tls/i686/cmov/libc.so.6
#39 0x080582b1 in _start () at ../sysdeps/i386/elf/start.S:119