Cursor Appearance during Drag/Drop

[FlatCat]

I have two Listboxes for which I have enabled drag and drop so that I can drag elements back and forth between them. The dragging and dropping work great, but what I notice is that during the drag, the cursor changes to a black circle with a line through it. It happens before I even leave the "from" listbox. To me that seems a little confusing, as if I am doing something forbidden. 

Is that expected behavior? Is there a setting somewhere to prevent that from happening? Should I explicitly change the cursor myself with Set Cursor. 

Thanks, 

David

[tst]

A quick test seems to show that you get that icon when the cursor is in a place where you can't drop. This can be because your source listbox has dropping disallowed, or because you're standing on the scrollbar, where dropping seems disallowed as well. There may be other cases.