     {
         super.notifyStyleChangeInChildren(styleProp, recursive);
         
-        cachedHeaderFormat = null;
-        cachedSubTextFormat = null;
+        cachedMessageTextFormat = null;
     }
     
     /**

        }
        
        // now size and position the elements, 3 different configurations we care about:
        // 1) header and message
        // 2) header only
        // 3) message only
        
        // label display goes on top
        // subtext display goes below
        
        var headerWidth:Number = 0;
        var headerHeight:Number = 0;
        var messageWidth:Number = 0;
        var messageHeight:Number = 0;
        var verticalGap:Number = 0;

/**
 *  The MobileIconItemRenderer class is a performant item 
 *  renderer optimized for mobile devices.  It contains 
 *  four optional parts: 1) an icon on the left, 2) label 
 *  on top next to the icon, 3) message below label and 
 *  next to the icon, and 4) a decorator on the right.
 *
 *  @see spark.components.List
