     //  defaultMajorSize
     //----------------------------------
     
-    private var _defaultMajorSize:Number = 20;
+    private var _defaultMajorSize:Number = 0;
     
     /**
      *  The size of items whose majorSize was not specified with setMajorSize.
      * 
-     *  @default 20
+     *  @default 0
      *  @see #cacheDimensions
      *  
      *  @langversion 3.0

        {
            setMajorSize(index, elt.getLayoutBoundsHeight());
            var w:Number = Math.min(elt.getPreferredBoundsWidth(), elt.getLayoutBoundsWidth());
            minorSize = Math.max(minorSize, w);
            minMinorSize = Math.max(minMinorSize, elt.getMinBoundsWidth());
        }
        else
        {
            setMajorSize(index, elt.getLayoutBoundsWidth());            
            var h:Number = Math.min(elt.getPreferredBoundsHeight(), elt.getLayoutBoundsHeight());
            minorSize = Math.max(minorSize, h);
            minMinorSize = Math.max(minMinorSize, elt.getMinBoundsHeight());
        }
    }

    }
    
    //----------------------------------
    //  defaultMinorSize
    //----------------------------------
    
    private var _defaultMinorSize:Number = 0;
    
    /**
     *  The default minimum value for the minorSize property.
     *
     *  @default 0
     *  @see #cacheDimensions
     *  
     *  @langversion 3.0
     *  @playerversion Flash 10
     *  @playerversion AIR 1.5
     *  @productversion Flex 4
     */
    public function get defaultMinorSize():Number
    {
        return _defaultMinorSize;
    }
    
    /**
     * @private
     */
    public function set defaultMinorSize(value:Number):void
    {
        _defaultMinorSize = value;
    }

    //----------------------------------
    //  minorSize
    //----------------------------------
    
    private var _minorSize:Number = 0;

    /**
     *  The maximum size of items along the axis opposite the majorAxis and the defaultMinorSize.
     * 
     *  This property is updated by the <code>cacheDimensions()</code> method.
     * 
     *  @default 0
     *  @see #cacheDimensions
     *  @see majorAxis
     *  @see #defaultMinorSize
     *  
     *  @langversion 3.0
     *  @playerversion Flash 10
