My fisrt experience with jQuery

I had to do a drag and drop interface for a web application , so I decided to give JQuery a try, since Microsoft is gong to distribute it with Visual Studio and I had a disapointment. There is a simple bug in the draggables function in IE ( works fine in Firefox) that if you have to scroll the page to see your draggable div , the clone div will not appear on the right place. You can see a proof here ..(scrool down the page too see three draggable divs ). Its a very simple code and it should just work...
I ended up using mootols . Using ExtJs was not an option because of the size of the library for something so simple.