[jQuery] IE7 and reverting draggables

[jQuery] IE7 and reverting draggables


Quick start - this link: http://www.fullonrobotchubby.co.uk/random/drag_text.htm
Hi there.
I've got a page where you can drag a group of boxes around. Dropping
them over a droppable div causes data to be entered into that div. I
need to be able to get the data in multiple times, so I need to revert
the boxes.
This works fine on FireFox, but on IE7 (and 8 and 6) you can only drag
the boxes once, and then they won't go anywhere again.
Here is a page with the same problem taken down to it's simplest
state: http://www.fullonrobotchubby.co.uk/random/drag_text.htm
The only jQuery code I have is the following:
[code]
$(document).ready(function(){
$(".wave_holder").Draggable({
revert: true
});
});
[/code]
What am I doing wrong?