         }
         
         // Store new view
-        if (pendingViewProxy)
-        {
-            pendingView = pendingViewProxy.instance;
+        if (pendingViewDescriptor)
+        {
+            pendingView = pendingViewDescriptor.instance;
             pendingView.addEventListener(PropertyChangeEvent.PROPERTY_CHANGE, 
                             view_propertyChangeHandler);
         }

     *  @playerversion AIR 1.5
     *  @productversion Flex 4
     */
    public var defaultPushTransition:ViewTransition;
    
    [SkinPart(required="false")]
    /**
     *  A skin part that defines the default transition to play when
     *  a view is popped off the navigation stack. 

            
            if (action == ViewNavigatorAction.POP)
            {
                navigationStack.popView();
            }
            else if (action == ViewNavigatorAction.POP_TO_FIRST)
            {
