Version:           0.12.7 (using KDE 3.5.8, Kubuntu (gutsy) 4:3.5.8-0ubuntu2)
Compiler:          Target: i486-linux-gnu
OS:                Linux (i686) release 2.6.22-14-generic

I added gtalk to kopete and logged in OK.
I then added MSN, and tried to login.
Kopete crashed.
I restarted
I tried to login again and Kopete crashed again.
I removed the MSN account and the crashes disappeared.

I am attaching the bug trace.

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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 -1242048016 (LWP 10900)]
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[KCrash handler]
#6  0xb597511a in MSNAccount::slotNotifySocketClosed ()
   from /usr/lib/libkopete_msn_shared.so.0
#7  0xb597d668 in MSNAccount::qt_invoke ()
   from /usr/lib/libkopete_msn_shared.so.0
#8  0xb681d893 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#9  0xb681e338 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#10 0xb59868dc in MSNSocket::socketClosed ()
   from /usr/lib/libkopete_msn_shared.so.0
#11 0xb599a4cd in MSNNotifySocket::disconnect ()
   from /usr/lib/libkopete_msn_shared.so.0
#12 0xb5996f3b in MSNNotifySocket::sslLoginFailed ()
   from /usr/lib/libkopete_msn_shared.so.0
#13 0xb599d0f5 in MSNNotifySocket::qt_invoke ()
   from /usr/lib/libkopete_msn_shared.so.0
#14 0xb681d893 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#15 0xb681e338 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#16 0xb59b716c in MSNSecureLoginHandler::loginFailed ()
   from /usr/lib/libkopete_msn_shared.so.0
#17 0xb59b740f in MSNSecureLoginHandler::slotTweenerReceived ()
   from /usr/lib/libkopete_msn_shared.so.0
#18 0xb59b85a6 in MSNSecureLoginHandler::qt_invoke ()
   from /usr/lib/libkopete_msn_shared.so.0
#19 0xb681d893 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#20 0xb7458021 in KIO::Job::result () from /usr/lib/libkio.so.4
#21 0xb74b08cd in KIO::Job::emitResult () from /usr/lib/libkio.so.4
#22 0xb74b0d2e in KIO::SimpleJob::slotFinished () from /usr/lib/libkio.so.4
#23 0xb74b143d in KIO::TransferJob::slotFinished () from /usr/lib/libkio.so.4
#24 0xb74b0301 in KIO::SimpleJob::qt_invoke () from /usr/lib/libkio.so.4
#25 0xb74b0363 in KIO::TransferJob::qt_invoke () from /usr/lib/libkio.so.4
#26 0xb681d893 in QObject::activate_signal () from /usr/lib/libqt-mt.so.3
#27 0xb6ba98ec in QSignal::signal () from /usr/lib/libqt-mt.so.3
#28 0xb683d842 in QSignal::activate () from /usr/lib/libqt-mt.so.3
#29 0xb6845258 in QSingleShotTimer::event () from /usr/lib/libqt-mt.so.3
#30 0xb67b4af0 in QApplication::internalNotify () from /usr/lib/libqt-mt.so.3
#31 0xb67b691f in QApplication::notify () from /usr/lib/libqt-mt.so.3
#32 0xb6f7aca2 in KApplication::notify () from /usr/lib/libkdecore.so.4
#33 0xb6747209 in QApplication::sendEvent () from /usr/lib/libqt-mt.so.3
#34 0xb67a753b in QEventLoop::activateTimers () from /usr/lib/libqt-mt.so.3
#35 0xb675bd49 in QEventLoop::processEvents () from /usr/lib/libqt-mt.so.3
#36 0xb67cf1ce in QEventLoop::enterLoop () from /usr/lib/libqt-mt.so.3
#37 0xb67cefde in QEventLoop::exec () from /usr/lib/libqt-mt.so.3
#38 0xb67b6699 in QApplication::exec () from /usr/lib/libqt-mt.so.3
#39 0x0807f95c in ?? ()
#40 0xbf8f62f4 in ?? ()
#41 0xbf8f62ec in ?? ()
#42 0xbf8f62e4 in ?? ()
#43 0x00000000 in ?? ()