         {
             case DPIClassification.DPI_320:
             {
-                trackWidth = 320;
+                trackWidth = 640;
                 trackHeight = 18;
                 
                 visibleTrackWidth = 280;

            }
            case DPIClassification.DPI_240:
            {
                trackWidth = 192;
                trackHeight = 13;
                
                visibleTrackWidth = 160;

            default:
            {
                // default PPI160
                trackWidth = 640;
                trackHeight = 10;
                
                visibleTrackWidth = 300;
                visibleTrackLeftOffset = 10;
                
                trackClass = spark.skins.mobile160.assets.HSliderTrack;
