Version:            (using KDE 4.2.2)
OS:                Linux
Installed from:    Ubuntu Packages

From a few days ago, the Kopete started to crash randomly while opening a new chat window.
This bug is most common when I try to open a second chat window with another contact.
The only plugin I have loaded is the WLM Plugin.

Backtrace: 
Application: Kopete (kopete), signal SIGABRT
[Current thread is 0 (LWP 4108)]

Thread 2 (Thread 0xb198bb90 (LWP 4109)):
#0  0xb7f93430 in __kernel_vsyscall ()
#1  0xb5cd10e5 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb60a72ed in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6
#3  0xb6cd89b2 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4
#4  0xb7590152 in ?? () from /usr/lib/libQtNetwork.so.4
#5  0xb6cd796e in ?? () from /usr/lib/libQtCore.so.4
#6  0xb5ccd4ff in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#7  0xb609849e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb5630700 (LWP 4108)):
[KCrash Handler]
#6  0xb7f93430 in __kernel_vsyscall ()
#7  0xb5fdf6d0 in raise () from /lib/tls/i686/cmov/libc.so.6
#8  0xb5fe1098 in abort () from /lib/tls/i686/cmov/libc.so.6
#9  0xb62098f8 in __gnu_cxx::__verbose_terminate_handler () from /usr/lib/libstdc++.so.6
#10 0xb62077d5 in ?? () from /usr/lib/libstdc++.so.6
#11 0xb6207812 in std::terminate () from /usr/lib/libstdc++.so.6
#12 0xb620794a in __cxa_throw () from /usr/lib/libstdc++.so.6
#13 0xb30d9c1b in MSN::Message::getFormatInfo () from /usr/lib/libmsn.so.0.1
#14 0xb30db9b8 in MSN::Message::getFontName () from /usr/lib/libmsn.so.0.1
#15 0xb31a394b in ?? () from /usr/lib/kde4/kopete_wlm.so
#16 0xb30e2737 in MSN::SwitchboardServerConnection::message_plain () from /usr/lib/libmsn.so.0.1
#17 0xb30e854b in MSN::SwitchboardServerConnection::handle_MSG () from /usr/lib/libmsn.so.0.1
#18 0xb30e38ff in MSN::SwitchboardServerConnection::dispatchCommand () from /usr/lib/libmsn.so.0.1
#19 0xb30e2ddd in MSN::SwitchboardServerConnection::handleIncomingData () from /usr/lib/libmsn.so.0.1
#20 0xb30de299 in MSN::Connection::dataArrivedOnSocket () from /usr/lib/libmsn.so.0.1
#21 0xb31a5cf1 in ?? () from /usr/lib/kde4/kopete_wlm.so
#22 0xb31a5e45 in ?? () from /usr/lib/kde4/kopete_wlm.so
#23 0xb6de1ca8 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#24 0xb6de2932 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#25 0xb6e1b7b7 in QIODevice::readyRead () from /usr/lib/libQtCore.so.4
#26 0xb75c5657 in ?? () from /usr/lib/libQtNetwork.so.4
#27 0xb75c9f7e in QSslSocket::qt_metacall () from /usr/lib/libQtNetwork.so.4
#28 0xb31a5e1a in ?? () from /usr/lib/kde4/kopete_wlm.so
#29 0xb6de1ca8 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#30 0xb6de2932 in QMetaObject::activate () from /usr/lib/libQtCore.so.4
#31 0xb6e1b7b7 in QIODevice::readyRead () from /usr/lib/libQtCore.so.4
#32 0xb75ae7f2 in ?? () from /usr/lib/libQtNetwork.so.4
#33 0xb759b77b in ?? () from /usr/lib/libQtNetwork.so.4
#34 0xb759cad6 in ?? () from /usr/lib/libQtNetwork.so.4
#35 0xb637df2c in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#36 0xb638622e in QApplication::notify () from /usr/lib/libQtGui.so.4
#37 0xb731b94d in KApplication::notify () from /usr/lib/libkdeui.so.5
#38 0xb6dcba3b in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#39 0xb6df76ca in ?? () from /usr/lib/libQtCore.so.4
#40 0xb5b27b88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#41 0xb5b2b0eb in ?? () from /usr/lib/libglib-2.0.so.0
#42 0xb5b2b268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#43 0xb6df7438 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#44 0xb641f3f5 in ?? () from /usr/lib/libQtGui.so.4
#45 0xb6dca06a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#46 0xb6dca4aa in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#47 0xb6dcc959 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#48 0xb637dda7 in QApplication::exec () from /usr/lib/libQtGui.so.4
#49 0x0808c27f in _start ()