      */
     private function set vsbVisible(value:Boolean):void
     {
-        var vsb:ScrollBar = getScroller().verticalScrollBar;
+        var vsb:ScrollBarBase = getScroller().verticalScrollBar;
         if (!vsb)
             return;
         

            return;

        var viewport:IViewport = scroller.viewport;
        var hsb:ScrollBar = scroller.horizontalScrollBar;
        var vsb:ScrollBar = scroller.verticalScrollBar;
        var minViewportInset:Number = scroller.minViewportInset;
        
        var contentW:Number = 0;

                    break;
            } 

        const vsb:ScrollBarBase = scroller.verticalScrollBar;
        var showVSB:Boolean = false;
        var vAuto:Boolean = false;
        if (measuredSizeIncludesScrollBars)
