new target creation problem

package{
	import flash.display3D.*;


	import flash.display.*;
	import flash.events.*;
	import flash.geom.*;

	[SWF(width="800",height="600")]
	public class MonkeyGame extends Sprite{
	
		protected var _stage3D:Stage3D;
		protected var _context3D:Context3D;
		protected var _stage:Stage;
		
		internal var vertexBuffer:VertexBuffer3D;
		internal var indexBuffer:IndexBuffer3D;
		internal var _modelViewMatrix : Matrix3D;
		
		public function MonkeyGame(){
			if (stage) 
				Request3DObject();
			else
				addEventListener(Event.ADDED_TO_STAGE,Request3DObject);
		
			addEventListener(Event.ENTER_FRAME,ReadyGraphics);
		}
		
		private function Request3DObject( e:Event=null ):void{
			removeEventListener(Event.ADDED_TO_STAGE, Request3DObject);
			_stage = stage;
			_stage.quality = StageQuality.LOW;
			_stage.align = StageAlign.TOP_LEFT;
			_stage.scaleMode = StageScaleMode.NO_SCALE;
			// Init stage3D 
			var stage3D:Stage3D = stage.stage3Ds[0];
			_stage3D = stage3D;			
			stage3D.addEventListener(Event.CONTEXT3D_CREATE, Int3D);        
			stage3D.requestContext3D(); 
		}
		
		private function Int3D(event:Event=null): void
		{
			var stage3D:Stage3D = event.currentTarget as Stage3D;
			_context3D = stage3D.context3D;
			_context3D.configureBackBuffer(stage.stageWidth, stage.stageHeight, 2); 
			// Create a vertexBuffer
			vertexBuffer = _context3D.createVertexBuffer(4,3);
				
			// Put some vertices into the buffer, 
			// and upload it to our GPU.
			var v:Vector.<Number> = new Vector.<Number>();
			v.push(-0.5,-0.5, 0, 0.5, -0.5, 0, -0.5, 0.5, 0, 0.5, 0.5, 0 );
			vertexBuffer.uploadFromVector(v,0, 4);
					
			// Create an indexBuffer
			indexBuffer = _context3D.createIndexBuffer(6);
			
			// Upload the contents of the indexBuffer to our GPU
			var v2:Vector.<uint> = new Vector.<uint>
			v2.push(1, 0, 2, 2, 3, 1);
			indexBuffer.uploadFromVector(v2,0, 6);
			
			_modelViewMatrix = new Matrix3D();
			_modelViewMatrix.appendTranslation(-stage.stageWidth/2, -stage.stageHeight/2, 0);            
			_modelViewMatrix.appendScale(2.0/stage.stageWidth, -2.0/stage.stageHeight, 1);
		}
		
		private function ReadyGraphics(e:Event=null):void{
			if( _context3D!=null ){
				throw("crated graphics object....");
				removeEventListener(Event.ENTER_FRAME,ReadyGraphics);
				addEventListener(Event.ADDED_TO_STAGE,OnAddedToStage);
			}	
		}

		private function OnAddedToStage( e:Event=null ):void{
			throw("starting game");
			BBMonkeyGame.Main( this );
		}

	}
}

package{
	import flash.display3D.*;


	import flash.display.*;
	import flash.events.*;
	import flash.geom.*;

	[SWF(width="640",height="480")]
	public class MonkeyGame extends Sprite{
	
		public var _stage3D:Stage3D;
		internal var _context3D:Context3D;
		internal var _stage:Stage;
		
		internal var vertexBuffer:VertexBuffer3D;
		internal var indexBuffer:IndexBuffer3D;
		internal var _modelViewMatrix : Matrix3D;
		
		public function MonkeyGame(){
			if (stage) 
				Request3DObject();
			else
				addEventListener(Event.ADDED_TO_STAGE,Request3DObject);
		
		}
		
		private function Request3DObject( e:Event=null ):void{
			removeEventListener(Event.ADDED_TO_STAGE, Request3DObject);
			_stage = stage;
			_stage.quality = StageQuality.LOW;
			_stage.align = StageAlign.TOP_LEFT;
			_stage.scaleMode = StageScaleMode.NO_SCALE;
			// Init stage3D 
			var stage3D:Stage3D = stage.stage3Ds[0];
			_stage3D = stage3D;			
			stage3D.addEventListener(Event.CONTEXT3D_CREATE, Init3D);        
			stage3D.requestContext3D(); 
		}
		
		private function Init3D(event:Event=null): void
		{
			var stage3D:Stage3D = event.currentTarget as Stage3D;
			_context3D = stage3D.context3D;
			_context3D.configureBackBuffer(stage.stageWidth, stage.stageHeight, 2); 
			BBMonkeyGame.Main( this );
		}
				
	}
}