Version:            (using KDE KDE 3.1.4)
Installed from:    Slackware Packages
Compiler:          gcc-g++-3.2.3-i486-1 
OS:          Linux

KDE is compiled with Xinerama.  Xinerama is enabled.  Quickly dragging file.jpg from head 2 to trash can on head 1 causes an unrelated konqueror window (displaying $HOME) to crash.  File.jpg's icon was dragged around konqueror window, rather then over/through it, before being dropped onto trash can.  File was successfully moved, after which konqueror crashed with this backtrace:

(no debugging symbols found)...[New Thread 16384 (LWP 6584)]
(no debugging symbols found)...0x40f4e5c9 in waitpid ()
   from /lib/libpthread.so.0
#0  0x40f4e5c9 in waitpid () from /lib/libpthread.so.0
#1  0x4063f9ed in KCrash::defaultCrashHandler(int) ()
   from /opt/kde/lib/libkdecore.so.4
#2  0x40f4cc45 in __pthread_sighandler () from /lib/libpthread.so.0
#3  <signal handler called>
#4  0x40924e10 in qt_xdnd_handle_selection_request(XSelectionRequestEvent const*) () from /usr/lib/qt/lib/libqt-mt.so.3
#5  0x40925151 in QDropEvent::encodedData(char const*) const ()
   from /usr/lib/qt/lib/libqt-mt.so.3
#6  0x413a83cb in KonqIconViewWidget::contentsDragEnterEvent(QDragEnterEvent*)
    () from /opt/kde/lib/libkonq.so.4
#7  0x40ae215a in QScrollView::viewportDragEnterEvent(QDragEnterEvent*) ()
   from /usr/lib/qt/lib/libqt-mt.so.3
#8  0x40ae1879 in QScrollView::eventFilter(QObject*, QEvent*) ()
   from /usr/lib/qt/lib/libqt-mt.so.3
#9  0x40b932bf in QIconView::eventFilter(QObject*, QEvent*) ()
   from /usr/lib/qt/lib/libqt-mt.so.3
#10 0x409d296e in QObject::activate_filters(QEvent*) ()
   from /usr/lib/qt/lib/libqt-mt.so.3
#11 0x409d2891 in QObject::event(QEvent*) () from /usr/lib/qt/lib/libqt-mt.so.3
#12 0x40a0960c in QWidget::event(QEvent*) () from /usr/lib/qt/lib/libqt-mt.so.3
#13 0x4097a035 in QApplication::internalNotify(QObject*, QEvent*) ()
   from /usr/lib/qt/lib/libqt-mt.so.3
#14 0x409796eb in QApplication::notify(QObject*, QEvent*) ()
   from /usr/lib/qt/lib/libqt-mt.so.3
#15 0x405c2c89 in KApplication::notify(QObject*, QEvent*) ()
   from /opt/kde/lib/libkdecore.so.4
#16 0x40922c92 in qt_handle_xdnd_position(QWidget*, _XEvent const*, bool) ()
   from /usr/lib/qt/lib/libqt-mt.so.3
#17 0x40911342 in QApplication::x11ClientMessage(QWidget*, _XEvent*, bool) ()
   from /usr/lib/qt/lib/libqt-mt.so.3
#18 0x40912501 in QApplication::x11ProcessEvent(_XEvent*) ()
   from /usr/lib/qt/lib/libqt-mt.so.3
#19 0x40927ed7 in QEventLoop::processEvents(unsigned) ()
   from /usr/lib/qt/lib/libqt-mt.so.3
#20 0x4098d276 in QEventLoop::enterLoop() () from /usr/lib/qt/lib/libqt-mt.so.3
#21 0x4098d118 in QEventLoop::exec() () from /usr/lib/qt/lib/libqt-mt.so.3
#22 0x4097a281 in QApplication::exec() () from /usr/lib/qt/lib/libqt-mt.so.3
#23 0x4141ba27 in main () from /opt/kde/lib/konqueror.so
#24 0x0804cbe1 in strcpy ()
#25 0x0804da09 in strcpy ()
#26 0x0804de8c in strcpy ()
#27 0x0804ec3a in strcpy ()
#28 0x4109cd06 in __libc_start_main () from /lib/libc.so.6