                                                  y : Number	= 1.,
                                                  z : Number	= 1.) : Matrix4x4
 		{
+			_invalidComponents = COMPONENT_ALL;
 			_matrix.prependTranslation(x, y, z);
 			
 			_hasChanged = true;

		
        final public function prependUniformScale(scale : Number) : Matrix4x4
		{
			_matrix.prependScale(scale, scale, scale);
			
			_hasChanged = true;

		
        final public function identity() : Matrix4x4
		{
			_invalidComponents = COMPONENT_ALL;
			_matrix.identity();

			_hasChanged = true;
