Version:           0.70.2 (using 4.2.2 (KDE 4.2.2), Kubuntu packages)
Compiler:          cc
OS:                Linux (i686) release 2.6.28-11-generic

Sending messages to other MSN contacts is no problem. 
Only after sending a message to my banks msn-buddy the program crashes. 

Here is the report it generates:
Programma: Kopete (kopete), signaal SIGABRT
[Current thread is 0 (LWP 3379)]

Thread 3 (Thread 0xaf12bb90 (LWP 3888)):
#0  0xb7f00430 in __kernel_vsyscall ()
#1  0xb5c420e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb60182ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb6c489b2 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#4  0xb7500152 in ?? () from /usr/lib/libQtNetwork.so.4
#5  0xb6c4796e in ?? () from /usr/lib/libQtCore.so.4
#6  0xb5c3e4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb600949e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 2 (Thread 0xab889b90 (LWP 4275)):
#0  0xb5a9bdd5 in ?? () from /usr/lib/libglib-2.0.so.0
#1  0xb5a9c268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#2  0xb6d67457 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#3  0xb6d3a06a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#4  0xb6d3a4aa in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#5  0xaaee2e59 in QCA::SyncThread::run () from /usr/lib/libqca.so.2
#6  0xb6c4796e in ?? () from /usr/lib/libQtCore.so.4
#7  0xb5c3e4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#8  0xb600949e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb55a1700 (LWP 3379)):
[KCrash Handler]
#5  0xb7f00430 in __kernel_vsyscall ()
#6  0xb5f506d0 in raise () from /lib/tls/i686/cmov/libc.so.6
#7  0xb5f52098 in abort () from /lib/tls/i686/cmov/libc.so.6
#8  0xb617a8f8 in __gnu_cxx::__verbose_terminate_handler () from /usr/lib/libstdc++.so.6
#9  0xb61787d5 in ?? () from /usr/lib/libstdc++.so.6
#10 0xb6178812 in std::terminate () from /usr/lib/libstdc++.so.6
#11 0xb617894a in __cxa_throw () from /usr/lib/libstdc++.so.6
#12 0xae819c1b in MSN::Message::getFormatInfo () from /usr/lib/libmsn.so.0.1
#13 0xae81b9b8 in MSN::Message::getFontName () from /usr/lib/libmsn.so.0.1
#14 0xae8e394b in ?? () from /usr/lib/kde4/kopete_wlm.so
#15 0xae822737 in MSN::SwitchboardServerConnection::message_plain () from /usr/lib/libmsn.so.0.1
#16 0xae82854b in MSN::SwitchboardServerConnection::handle_MSG () from /usr/lib/libmsn.so.0.1
#17 0xae8238ff in MSN::SwitchboardServerConnection::dispatchCommand () from /usr/lib/libmsn.so.0.1
#18 0xae822ddd in MSN::SwitchboardServerConnection::handleIncomingData () from /usr/lib/libmsn.so.0.1
#19 0xae81e299 in MSN::Connection::dataArrivedOnSocket () from /usr/lib/libmsn.so.0.1
#20 0xae8e5cf1 in ?? () from /usr/lib/kde4/kopete_wlm.so
#21 0xae8e5e45 in ?? () from /usr/lib/kde4/kopete_wlm.so
#22 0xb6d51ca8 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#23 0xb6d52932 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#24 0xb6d8b7b7 in QIODevice::readyRead () from /usr/lib/libQtCore.so.4
#25 0xb7535657 in ?? () from /usr/lib/libQtNetwork.so.4
#26 0xb7539f7e in QSslSocket::qt_metacall () from /usr/lib/libQtNetwork.so.4
#27 0xae8e5e1a in ?? () from /usr/lib/kde4/kopete_wlm.so
#28 0xb6d51ca8 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#29 0xb6d52932 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#30 0xb6d8b7b7 in QIODevice::readyRead () from /usr/lib/libQtCore.so.4
#31 0xb751e7f2 in ?? () from /usr/lib/libQtNetwork.so.4
#32 0xb750b77b in ?? () from /usr/lib/libQtNetwork.so.4
#33 0xb750cad6 in ?? () from /usr/lib/libQtNetwork.so.4
#34 0xb62eee9c in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#35 0xb62f719e in QApplication::notify () from /usr/lib/libQtGui.so.4
#36 0xb728b94d in KApplication::notify () from /usr/lib/libkdeui.so.5
#37 0xb6d3ba3b in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#38 0xb6d676ca in ?? () from /usr/lib/libQtCore.so.4
#39 0xb5a98b88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#40 0xb5a9c0eb in ?? () from /usr/lib/libglib-2.0.so.0
#41 0xb5a9c268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#42 0xb6d67438 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#43 0xb6390365 in ?? () from /usr/lib/libQtGui.so.4
#44 0xb6d3a06a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#45 0xb6d3a4aa in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#46 0xb6d3c959 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#47 0xb62eed17 in QApplication::exec () from /usr/lib/libQtGui.so.4
#48 0x0808c27f in _start ()