Menu Reordering in 3.5 is Broken

Just upgraded to 3.5 and am now unable to reorder menu item. Previously it was just a matter of dragging them in place, but all that happens now is it just selected the text. I’ve using OSX and have tried Chrome, Safari and Firefox. I do receive a console message upon load. I’m not sure if its related or not, but it might help someone out there.

Uncaught TypeError: Object function (name,base,prototype){var namespace=name.split(".")[0],fullName;name=name.split(".")[1];fullName=namespace+"-"+ name;if(!prototype){prototype=base;base=$.Widget;}
$.expr[":"][fullName]=function(elem){return!!$.data(elem,name);};$[namespace]=$[namespace]||{};$[namespace][name]=function(options,element){if(arguments.length){this._createWidget(options,element);}};var basePrototype=new base();basePrototype.options=$.extend({},basePrototype.options);$[namespace][name].prototype=$.extend(true,basePrototype,{namespace:namespace,widgetName:name,widgetEventPrefix:$[namespace][name].prototype.widgetEventPrefix||name,widgetBaseClass:fullName},prototype);$.widget.bridge(name,$[namespace][name]);} has no method 'extend' load-scripts.php:15
e.Widget._createWidget load-scripts.php:15
e.(anonymous function).(anonymous function) load-scripts.php:15
(anonymous function) load-scripts.php:15
v.extend.each load-scripts.php:2
v.fn.v.each load-scripts.php:2
e.fn.(anonymous function) load-scripts.php:15
wpNavMenu.initSortables load-scripts.php:41
wpNavMenu.init load-scripts.php:41
(anonymous function) load-scripts.php:41
l load-scripts.php:2
c.fireWith load-scripts.php:2
v.extend.ready load-scripts.php:2
A

Thanks