diff --git a/lib/OpenLayers/Events.js b/lib/OpenLayers/Events.js
index 92e7782517..8677dff728 100644
--- a/lib/OpenLayers/Events.js
+++ b/lib/OpenLayers/Events.js
@@ -205,8 +205,9 @@ OpenLayers.Events.prototype = {
             this.element.offsets = Position.page(this.element);
         }
         return new OpenLayers.Pixel(
-                        evt.clientX - this.element.offsets[0], 
-                        evt.clientY - this.element.offsets[1]); 
+                        (evt.clientX + (document.documentElement.scrollLeft || document.body.scrollLeft)) - this.element.offsets[0], 
+                        (evt.clientY + (document.documentElement.scrollTop || document.body.scrollTop)) - this.element.offsets[1] 
+                        ); 
     },
 
     /** @final @type String */