                 if (hsb) showHSB = true; 
                 break;
             case ScrollPolicy.AUTO: 
-                if (hsb) showHSB = hsb.visible; 
+                if (hsb) showHSB = hsb.visible;  
                 break;
         } 
 

     * 
     *  The scrollbars are made visible if the viewport's content size is
     *  bigger than the actual size.
     * 
     *  If the visibility of either scrollbar changes we apply invalidateSize()
     *  to the ScrollerSkin.
     * 
     *  This causes new values for measuredWidth,Height to be computed, and 
     *  it causes the update process to be restarted.
     * 
     *  Note also: the logic for calling updateDisplayList and then restarting
     *  the process if the component has become invalid is in
     *  mx.managers.LayoutManager::validateDisplayList.
     * 
     */
    override public function updateDisplayList(w:Number, h:Number):void
    {  

                if (vsb) showVSB = true; 
                break;
            case ScrollPolicy.AUTO: 
                if (vsb) showVSB = vsb.visible;  
                break;
        }
        
        if (showHSB)
