jQuery Sortable - Multilevel problem in IE

I've got a question about using sortable in a multilevel list.

In a CMS I'm using jQuery UI sortable to order my menu items. The system works in all browsers, but in IE it won't work. I've made a st开发者_如何学JAVAandalone version where you can see the problem: http://hhwcms.nl/temp/ When you try to order a sub menu you get the problem, the parent item will follow your mouse. In Firefox I can just drag the sub item, but in Internet Explorer the parent will follow. I've posted my source code on pastebin: http://pastebin.com/GE7s10GU

Hopefully could somebody help me.

Thanks in advance!

Sorry for the brief answer but I'm just on my way out of the door. Have you tried using .live() to bind to the events? I had a problem in jQuery with IE and switching over to .live() seemed to help.