TKDND and listboxes

Good Day,

I have set up a list box as a drag source and some other widgets as drop targets. All is working great! The problem I am having is when the target is below the bottom of the listbox and it when the drag source item from the listbox is near the top of the listbox... as I drag the item to the target, the listbox starts to scroll. Does anyone have any ideas on how to stop the listbox from scrolling while I am dragging?

PERL V5.12, TKDND v2 using Tkx for GUI interfacing.

Thanks,
gary