Version:           1.1.1 (using KDE KDE 3.1.1)
Installed from:    Compiled From Sources
Compiler:          gcc-3.2.2 -march=athlon-xp -mcpu=athlon-xp -mmmx -msse -m3dnow -mfpmath=sse
OS:          Linux

this is the back trace:
[New Thread 16384 (LWP 21160)]
0x411a0f29 in wait4 () from /lib/libc.so.6
#0  0x411a0f29 in wait4 () from /lib/libc.so.6
#1  0x41221234 in __DTOR_END__ () from /lib/libc.so.6
#2  0x41078103 in waitpid () from /lib/libpthread.so.0
#3  0x406f438e in KCrash::defaultCrashHandler(int) ()
   from /opt/kde3.1.1/lib/libkdecore.so.4
#4  <signal handler called>
#5  0x40d99c96 in QGList::first() () from /opt/qt3.1.2/lib/libqt-mt.so.3
#6  0x0808622a in UMLView::deleteSelection() ()
#7  0x0809b850 in UMLApp::slotEditCut() ()
#8  0x0806a99a in UMLListView::popupMenuSel(int) ()
#9  0x080d7db6 in UMLListView::qt_invoke(int, QUObject*) ()
#10 0x40b3a8ae in QObject::activate_signal(QConnectionList*, QUObject*) ()
   from /opt/qt3.1.2/lib/libqt-mt.so.3
#11 0x40b3a98d in QObject::activate_signal(int, int) ()
   from /opt/qt3.1.2/lib/libqt-mt.so.3
#12 0x40e21482 in QPopupMenu::activated(int) ()
   from /opt/qt3.1.2/lib/libqt-mt.so.3
#13 0x40c212cc in QPopupMenu::actSig(int, bool) ()
   from /opt/qt3.1.2/lib/libqt-mt.so.3
#14 0x40c254a7 in QPopupMenu::mouseReleaseEvent(QMouseEvent*) ()
   from /opt/qt3.1.2/lib/libqt-mt.so.3
#15 0x40b6df51 in QWidget::event(QEvent*) ()
   from /opt/qt3.1.2/lib/libqt-mt.so.3
#16 0x40add88b in QApplication::internalNotify(QObject*, QEvent*) ()
   from /opt/qt3.1.2/lib/libqt-mt.so.3
#17 0x40add0da in QApplication::notify(QObject*, QEvent*) ()
   from /opt/qt3.1.2/lib/libqt-mt.so.3
#18 0x40689409 in KApplication::notify(QObject*, QEvent*) ()
   from /opt/kde3.1.1/lib/libkdecore.so.4
#19 0x40a83c2a in QETWidget::translateMouseEvent(_XEvent const*) ()
   from /opt/qt3.1.2/lib/libqt-mt.so.3
#20 0x40a819e8 in QApplication::x11ProcessEvent(_XEvent*) ()
   from /opt/qt3.1.2/lib/libqt-mt.so.3
#21 0x40a96e1f in QEventLoop::processEvents(unsigned) ()
   from /opt/qt3.1.2/lib/libqt-mt.so.3
#22 0x40af1381 in QEventLoop::enterLoop() ()
   from /opt/qt3.1.2/lib/libqt-mt.so.3
#23 0x40af1228 in QEventLoop::exec() () from /opt/qt3.1.2/lib/libqt-mt.so.3
#24 0x40addac1 in QApplication::exec() () from /opt/qt3.1.2/lib/libqt-mt.so.3
#25 0x080ab2ce in main ()
#26 0x41108bb4 in __libc_start_main () from /lib/libc.so.6