     //  requestedMinRowCount
     //----------------------------------
 
-    private var _requestedMinRowCount:int = 0;
+    private var _requestedMinRowCount:int = -1;
     
     [Inspectable(category="General", minValue="-1")]
 

     *  @private
     */
    override protected function calculateDragScrollDelta(dropLocation:DropLocation,
                                                         timeInterval:int,
                                                         timeElapsed:int):Point
    {
        var delta:Point = super.calculateDragScrollDelta(dropLocation, timeInterval, timeElapsed);
        // Don't scroll in the horizontal direction
        if (delta)
            delta.x = 0;

     *  <p>If the actual size of the container has been explicitly set,
     *  then this property has no effect.</p>
     *
     *  @default -1
     *  
     *  @langversion 3.0
     *  @playerversion Flash 10
