                 
                 break;
             }
-            case DeviceDensity.PPI_240:
+            case DPIClassification.DPI_240:
             {
                 trackWidth = 192;
                 trackHeight = 13;

import flash.display.DisplayObject;
import flash.display.Graphics;

import mx.core.DeviceDensity;

import spark.components.Button;
import spark.skins.mobile.supportClasses.MobileSkin;

        useChromeColor = true;
        
        // set the right assets and dimensions to use based on the screen density
        switch (applicationDPI)
        {
			case DPIClassification.DPI_320:
			{
				trackWidth = 320;
				trackHeight = 18;
				
                visibleTrackWidth = 280;
                visibleTrackLeftOffset = 20;
                
