diff --git a/Make/dependencies b/Make/dependencies
index 47051b6ce..63b0a9de4 100644
--- a/Make/dependencies
+++ b/Make/dependencies
@@ -13,6 +13,8 @@ COMPILE_EXAMPLES ?= no
 # follows are dependenices on the various plugins.
 
 COLLADA_INSTALLED ?= no
+COLLADA_DAE_HOME ?= /usr/local
+COLLADA_DEBUG_LIBS ?= yes
 
 GDAL_INSTALLED ?= no
 JASPER_INSTALLED ?= no
@@ -23,6 +25,9 @@ XINE_INSTALLED ?= no
 
 QT3_INSTALLED ?= no
 
+QT4_INSTALLED ?= no
+QT4_ROOT ?= /usr/local/
+
 SDL_INSTALLED ?= no
 
 ifeq ($(OS),Darwin)
diff --git a/Make/makedirdefs b/Make/makedirdefs
index 8c84c0cb3..04fafd18a 100644
--- a/Make/makedirdefs
+++ b/Make/makedirdefs
@@ -291,6 +291,10 @@ ifeq ($(QT3_INSTALLED),yes)
     EXAMPLE_DIRS += osgsimpleviewerQT3
 endif
 
+ifeq ($(QT4_INSTALLED),yes)
+    EXAMPLE_DIRS += osgsimpleviewerQT4
+endif
+
 ifeq ($(SDL_INSTALLED),yes)
     EXAMPLE_DIRS += osgsimpleviewerSDL
 endif
diff --git a/examples/osgsimpleviewerQT4/GNUmakefile b/examples/osgsimpleviewerQT4/GNUmakefile
new file mode 100644
index 000000000..c48dcd7ca
--- /dev/null
+++ b/examples/osgsimpleviewerQT4/GNUmakefile
@@ -0,0 +1,18 @@
+TOPDIR = ../..
+include $(TOPDIR)/Make/makedefs
+
+CXXFILES =\
+	osgsimpleviewerQT4.cpp\
+
+LIBS     += -losgGA -losgDB -losgUtil -losg -lQtOpenGL -lQtGui -lQtCore $(GL_LIBS) $(OTHER_LIBS)
+
+INSTFILES = \
+	$(CXXFILES)\
+	GNUmakefile.inst=GNUmakefile
+
+EXEC = osgsimpleviewerQT4
+
+INC      += -I$(QT4_ROOT)/include
+LDFLAGS  += -L$(QT4_ROOT)/lib
+
+include $(TOPDIR)/Make/makerules 
diff --git a/examples/osgsimpleviewerQT4/GNUmakefile.inst b/examples/osgsimpleviewerQT4/GNUmakefile.inst
new file mode 100644
index 000000000..f0377de38
--- /dev/null
+++ b/examples/osgsimpleviewerQT4/GNUmakefile.inst
@@ -0,0 +1,14 @@
+TOPDIR = ../..
+include $(TOPDIR)/Make/makedefs
+
+CXXFILES =\
+	osgsimpleviewerQT4.cpp\
+
+LIBS     += -losgDB -losgUtil -losg -lqt-mt $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS) 
+
+EXEC = osgsimpleviewerQT4
+
+INC      += -I$(QT4_ROOT)/include
+LDFLAGS  += -L$(QT4_ROOT)/lib
+
+include $(TOPDIR)/Make/makerules
diff --git a/examples/osgsimpleviewerQT4/osgsimpleviewerQT4.cpp b/examples/osgsimpleviewerQT4/osgsimpleviewerQT4.cpp
new file mode 100644
index 000000000..d6b973cc7
--- /dev/null
+++ b/examples/osgsimpleviewerQT4/osgsimpleviewerQT4.cpp
@@ -0,0 +1,134 @@
+// C++ source file - (C) 2003 Robert Osfield, released under the OSGPL.
+// (C) 2005 Mike Weiblen http://mew.cx/ released under the OSGPL.
+// Simple example using GLUT to create an OpenGL window and OSG for rendering.
+// Derived from osgGLUTsimple.cpp and osgkeyboardmouse.cpp
+
+#include <osgGA/SimpleViewer>
+#include <osgGA/TrackballManipulator>
+#include <osgDB/ReadFile>
+
+#include <QtCore/QTimer>
+#include <QtGui/QKeyEvent>
+#include <QtGui/QApplication>
+#include <QtOpenGL/QGLWidget>
+
+#include <iostream>
+
+class OSGWidget : public QGLWidget, public osgGA::SimpleViewer
+{
+public:
+
+    OSGWidget( QWidget * parent = 0, const char * name = 0, const QGLWidget * shareWidget = 0, Qt::WFlags f = 0 );
+    virtual ~OSGWidget() {}
+
+protected:
+
+    virtual void initializeGL();
+    virtual void paintGL();
+
+    virtual void resizeGL( int width, int height );
+    virtual void keyPressEvent( QKeyEvent* event );
+    virtual void keyReleaseEvent( QKeyEvent* event );
+    virtual void mousePressEvent( QMouseEvent* event );
+    virtual void mouseReleaseEvent( QMouseEvent* event );
+    virtual void mouseMoveEvent( QMouseEvent* event );
+
+    QTimer _timer;
+};
+
+OSGWidget::OSGWidget( QWidget * parent, const char * /*name*/, const QGLWidget * shareWidget, Qt::WFlags f):
+    QGLWidget(parent, shareWidget, f)
+{
+    connect(&_timer, SIGNAL(timeout()), this, SLOT(updateGL()));
+    _timer.start(10);
+}
+
+void OSGWidget::initializeGL()
+{
+    QGLWidget::initializeGL();    
+}
+
+void OSGWidget::paintGL()
+{
+    frame();
+}
+
+void OSGWidget::resizeGL( int width, int height )
+{
+    getEventQueue()->windowResize(0, 0, width, height );
+}
+
+void OSGWidget::keyPressEvent( QKeyEvent* event )
+{
+    getEventQueue()->keyPress( (osgGA::GUIEventAdapter::KeySymbol) event->key() );
+}
+
+void OSGWidget::keyReleaseEvent( QKeyEvent* event )
+{
+    getEventQueue()->keyRelease( (osgGA::GUIEventAdapter::KeySymbol) event->key() );
+}
+
+void OSGWidget::mousePressEvent( QMouseEvent* event )
+{
+    int button = 0;
+    switch(event->button())
+    {
+        case(Qt::LeftButton): button = 1; break;
+        case(Qt::MidButton): button = 2; break;
+        case(Qt::RightButton): button = 3; break;
+        case(Qt::NoButton): button = 0; break;
+        default: button = 0; break;
+    }
+    getEventQueue()->mouseButtonPress(event->x(), event->y(), button);
+}
+
+void OSGWidget::mouseReleaseEvent( QMouseEvent* event )
+{
+    int button = 0;
+    switch(event->button())
+    {
+        case(Qt::LeftButton): button = 1; break;
+        case(Qt::MidButton): button = 2; break;
+        case(Qt::RightButton): button = 3; break;
+        case(Qt::NoButton): button = 0; break;
+        default: button = 0; break;
+    }
+    getEventQueue()->mouseButtonRelease(event->x(), event->y(), button);
+}
+
+void OSGWidget::mouseMoveEvent( QMouseEvent* event )
+{
+    getEventQueue()->mouseMotion(event->x(), event->y());
+}
+
+int main( int argc, char **argv )
+{
+    QApplication a( argc, argv );
+    
+    if (argc<2)
+    {
+        std::cout << argv[0] <<": requires filename argument." << std::endl;
+        return 1;
+    }
+
+    // load the scene.
+    osg::ref_ptr<osg::Node> loadedModel = osgDB::readNodeFile(argv[1]);
+    if (!loadedModel)
+    {
+        std::cout << argv[0] <<": No data loaded." << std::endl;
+        return 1;
+    }
+
+
+    OSGWidget* viewerWindow = new OSGWidget;
+
+    viewerWindow->setSceneData(loadedModel.get());
+    viewerWindow->setCameraManipulator(new osgGA::TrackballManipulator);
+
+    viewerWindow->show();
+    a.connect( &a, SIGNAL(lastWindowClosed()), &a, SLOT(quit()) );
+   
+    return a.exec();
+}
+
+/*EOF*/