I implemented a drag and drop system similar to the one in the demo. I have a requirement that the box being dragged onto the chart must be visible, rather than just use the standard copy cursor. The other requirement is that you cannot drop a new box overlapping an existing box. In the dragOver event handler, I move the new box to the mouse coordinates. I change the effects cursor to be either "copy" or "none" depending on overlaps. However, if the user releases the mouse button whilst the cursor is "none", the new box remains where it is. What I really want to do in this situation is delete the new box, but I cannot trap the mouse up event. Has anyone got any example code I can crib? or a hint or two.
Thanks, Steve.

Yes, of course! Thanks.