diff --git a/lib/OpenLayers/Layer/WorldWind.js b/lib/OpenLayers/Layer/WorldWind.js
index 1adeedcce2..2264bb62ea 100644
--- a/lib/OpenLayers/Layer/WorldWind.js
+++ b/lib/OpenLayers/Layer/WorldWind.js
@@ -46,12 +46,9 @@ OpenLayers.Layer.WorldWind.prototype =
             return new OpenLayers.Tile.Image(this, position, bounds, 
                                              url, this.tileSize);
         } else {
-            var tile = new Object();
-            tile.draw = function() {};
-            tile.destroy = function() {};
-            tile.bounds = bounds;
-            tile.bounds = position;
-            return tile;
+            return new OpenLayers.Tile.Image(this, position, bounds, 
+                       OpenLayers.Util.getImagesLocation() + "blank.gif", 
+                       this.tileSize);
         }
     },
 
@@ -76,11 +73,16 @@ OpenLayers.Layer.WorldWind.prototype =
         var deg = this.lzd/Math.pow(2,this.getZoom());
         var x = Math.floor((bounds.left - extent.left)/deg);
         var y = Math.floor((bounds.bottom - extent.bottom)/deg);
-        return this.getFullRequestString(
+        if (this.map.getResolution() <= (this.lzd/512)
+            && this.getZoom() <= this.zoomLevels) {
+            return this.getFullRequestString(
               { L: zoom, 
                 X: x,
                 Y: y
               });
+        } else {
+            return OpenLayers.Util.getImagesLocation() + "blank.gif";
+        }
 
     },