Version:            (using KDE KDE 3.5.5)
Installed from:    SuSE RPMs
Compiler:          gcc - The system GNU C Compiler 4.1.3-29 
OS:                Linux

I use the MediaPlayerConnectivity 0.8.3 plugin in Mozilla Firefox and the Mplayer 1.0rc1try2-2.pm.2 for play streams like asf. 
Here the backtrace:

Controllo all'avvio della configurazione di sistema disattivato.

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Using host libthread_db library "/lib/libthread_db.so.1".
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[Thread debugging using libthread_db enabled]
[New Thread -1230988800 (LWP 5464)]
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[KCrash handler]
#9  0xb601ccfa in TaskContainer::updateKickerTip ()
   from /opt/kde3/lib/libtaskbar.so.1
#10 0xb66d6d82 in KickerTip::display () from /opt/kde3/lib/libkickermain.so.1
#11 0xb66d72ec in KickerTip::qt_invoke () from /opt/kde3/lib/libkickermain.so.1
#12 0xb75293cd in QObject::activate_signal ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#13 0xb752a00d in QObject::activate_signal ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#14 0xb78652b9 in QTimer::timeout () from /usr/lib/qt3/lib/libqt-mt.so.3
#15 0xb754cbdf in QTimer::event () from /usr/lib/qt3/lib/libqt-mt.so.3
#16 0xb74ca647 in QApplication::internalNotify ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#17 0xb74cb4f9 in QApplication::notify () from /usr/lib/qt3/lib/libqt-mt.so.3
#18 0xb7b531f2 in KApplication::notify () from /opt/kde3/lib/libkdecore.so.4
#19 0xb74bf663 in QEventLoop::activateTimers ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#20 0xb7479bd0 in QEventLoop::processEvents ()
   from /usr/lib/qt3/lib/libqt-mt.so.3
#21 0xb74e10e0 in QEventLoop::enterLoop () from /usr/lib/qt3/lib/libqt-mt.so.3
#22 0xb74e0f76 in QEventLoop::exec () from /usr/lib/qt3/lib/libqt-mt.so.3
#23 0xb74ca00f in QApplication::exec () from /usr/lib/qt3/lib/libqt-mt.so.3
#24 0xb677e232 in kdemain () from /opt/kde3/lib/libkdeinit_kicker.so
#25 0xb7f78514 in kdeinitmain () from /opt/kde3/lib/kde3/kicker.so
#26 0x0804e33f in QGList::~QGList ()
#27 0x00000001 in ?? ()
#28 0x08080258 in ?? ()
#29 0x00000001 in ?? ()
#30 0x00000000 in ?? ()

First i have open the page of a first radio on firefox, and the MediaPlayerConnectivity plugin open correctly the first istance of Mplayer.
When i have opened the second page of another radio (on air) in firefox, an another instance on Mplayer have started, but suddenly kicker have crashed with signal 11 (SIGSEGV).