The following bug appears in VFP6 and 7.

Click on an item in a list box and drag up or down with the mouse button still down. This changes the selected item (non-default Windows behaviour).

Worse, if you do the same with the Right mouse button, the InteractiveChange method does not fire. The only method that is fired is ProgrammaticChange.

Attempting to disable Right clicking with NODEFAULT seems to have no effect. This bug becomes serious when using a list to select a record to edit.