diff -r 353a78021ebc -r 03b03865eb9b src/js/widgets/sliderWidget.js
--- a/src/js/widgets/sliderWidget.js	Thu Mar 22 18:42:31 2012 +0100
+++ b/src/js/widgets/sliderWidget.js	Mon Mar 26 19:18:04 2012 +0200
@@ -154,16 +154,16 @@
 };
 
 IriSP.SliderWidget.prototype.positionMarkerDraggedHandler = function(event, ui) {   
-  this._disableUpdate = true; // disable slider position updates while dragging is ongoing.
+
+/*  this._disableUpdate = true; // disable slider position updates while dragging is ongoing.
   window.setTimeout(IriSP.wrap(this, function() { this._disableUpdate = false; }), 500);
-
+*/
   var parentOffset = this.sliderForeground.parent().offset();
   var width = this.sliderBackground.width();
-  var relX = event.pageX - parentOffset.left;
+  var relX = event.originalEvent.pageX - parentOffset.left;
 
   var duration = this._serializer.getDuration() / 1000;
   var newTime = ((relX / width) * duration).toFixed(2);
-
   this._Popcorn.currentTime(newTime);
   
   this.draggingOngoing = false;