Version:            (using KDE 3.5.9)
Installed from:    Fedora RPMs
Compiler:          gcc 4.2.1 
OS:                Linux

Although there are many similar reports all seem to be closed, but this crash happens with KDE-3.5.9, and I see it about every two months:

Using host libthread_db library "/lib/libthread_db.so.1".
[Thread debugging using libthread_db enabled]
[New Thread -1208395552 (LWP 2201)]
[KCrash handler]
#6  0xb794fa19 in TaskContainer::popupMenu (this=0x8304af0, action=0)
    at taskcontainer.cpp:1176
#7  0xb79550a0 in TaskContainer::performAction (this=0x8304af0, action=0)
    at taskcontainer.cpp:995
#8  0xb795b16c in TaskContainer::mousePressEvent (this=0x8304af0, 
    e=0xbfab0d70) at taskcontainer.cpp:929
#9  0x41d7d373 in QWidget::event (this=0x8304af0, e=0xbfab0d70)
    at kernel/qwidget.cpp:4699
#10 0x41cd74eb in QApplication::internalNotify (this=0x805e490, 
    receiver=0x8304af0, e=0xbfab0d70) at kernel/qapplication.cpp:2638
#11 0x41cd8c99 in QApplication::notify (this=0x805e490, receiver=0x8304af0, 
    e=0xbfab0d70) at kernel/qapplication.cpp:2424
#12 0x4168e3a2 in KApplication::notify (this=0x805e490, receiver=0x8304af0, 
    event=0xbfab0d70) at kapplication.cpp:550
#13 0x41c6e3c6 in QETWidget::translateMouseEvent (this=0x8304af0, 
    event=0xbfab1118) at kernel/qapplication.h:526
#14 0x41c6d196 in QApplication::x11ProcessEvent (this=0x805e490, 
    event=0xbfab1118) at kernel/qapplication_x11.cpp:3603
#15 0x41c7ee1b in QEventLoop::processEvents (this=0x80656c0, 
    flags=<value optimized out>) at kernel/qeventloop_x11.cpp:195
#16 0x41cf0dc0 in QEventLoop::enterLoop (this=0x80656c0)
    at kernel/qeventloop.cpp:201
#17 0x41cf0c76 in QEventLoop::exec (this=0x80656c0)
    at kernel/qeventloop.cpp:148
#18 0x41cd712f in QApplication::exec (this=0x805e490)
    at kernel/qapplication.cpp:2761
#19 0x417d70a2 in kdemain (argc=1, argv=0xbfab13e4) at main.cpp:149
#20 0x080484c2 in main (argc=) at kicker.la.cpp:2
#21 0x008d2390 in __libc_start_main () from /lib/libc.so.6
#22 0x080483e1 in _start ()