Version:           2.0.0 "Mars Pathfinder' (using KDE 4.2.2)
OS:                Other
Installed from:    Ubuntu Packages

Environment: 
- Ubuntu 9.04, the Jaunty Jackalope - released in April 2009.
- Gnome GUI, ver. 2.26.1 from 05/06/2009
- Compiz extra.

-- STEPS

1) Open Krusader.

2) Open any image for quick view (use F3 for call KrViewer)

3) Click left mouse button and hold it. Drag the picture (e.g. - down). Don't release left button on mouse!!!

4) Press ESC.

-- ACTUAL RESULT

Krusader is down.

Appear following information:

Application: Krusader (krusader), signal SIGSEGV

Thread 1 (Thread 0xb5443700 (LWP 4223)):
[KCrash Handler]
#6  0xb7aece62 in KHTMLPart::handleMouseMoveEventDrag () from /usr/lib/libkhtml.so.5
#7  0xb7af8afc in KHTMLPart::khtmlMouseMoveEvent () from /usr/lib/libkhtml.so.5
#8  0xb7adf4a7 in KHTMLPart::customEvent () from /usr/lib/libkhtml.so.5
#9  0xb5fe43ff in QObject::event () from /usr/lib/libQtCore.so.4
#10 0xb6320e9c in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#11 0xb632919e in QApplication::notify () from /usr/lib/libQtGui.so.4
#12 0xb783a94d in KApplication::notify () from /usr/lib/libkdeui.so.5
#13 0xb5fd3a3b in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#14 0xb7ad09ff in KHTMLView::mouseMoveEvent () from /usr/lib/libkhtml.so.5
#15 0xb63779ad in QWidget::event () from /usr/lib/libQtGui.so.4
#16 0xb6751993 in QFrame::event () from /usr/lib/libQtGui.so.4
#17 0xb7acd84f in KHTMLView::widgetEvent () from /usr/lib/libkhtml.so.5
#18 0xb7acda8d in KHTMLView::eventFilter () from /usr/lib/libkhtml.so.5
#19 0xb5fd2c5a in QCoreApplicationPrivate::sendThroughObjectEventFilters () from /usr/lib/libQtCore.so.4
#20 0xb6320e7a in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4
#21 0xb6329b11 in QApplication::notify () from /usr/lib/libQtGui.so.4
#22 0xb783a94d in KApplication::notify () from /usr/lib/libkdeui.so.5
#23 0xb5fd3a3b in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4
#24 0xb6328b7e in QApplicationPrivate::sendMouseEvent () from /usr/lib/libQtGui.so.4
#25 0xb639897e in ?? () from /usr/lib/libQtGui.so.4
#26 0xb6397ca7 in QApplication::x11ProcessEvent () from /usr/lib/libQtGui.so.4
#27 0xb63c2c6a in ?? () from /usr/lib/libQtGui.so.4
#28 0xb56d1b88 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#29 0xb56d50eb in ?? () from /usr/lib/libglib-2.0.so.0
#30 0xb56d5268 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0
#31 0xb5fff438 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4
#32 0xb63c2365 in ?? () from /usr/lib/libQtGui.so.4
#33 0xb5fd206a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4
#34 0xb5fd24aa in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#35 0xb5fd4959 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4
#36 0xb6320d17 in QApplication::exec () from /usr/lib/libQtGui.so.4
#37 0x08092f95 in _start ()

Please, see hte videorecording of thsi bug on http://www.youtube.com/watch?v=AcR34yQ5GTA (cause I didn't find how to add video and pictures here).