I am having a problem with one of the examples in this chapter.

In the drag and drop example (version 4) with the drop target, whenever I attempt to move the red box, the blue box moves as well, so the draggable object can never be positioned over the drop target. This happens even when I use the sample code downloaded from the website.

I was wondering if anyone else has encountered this problem, and, if so, how did you resolve it?