I have a form with a drop down selection box in the header.  The ID selected,
displays data on body of the form, then there is a subform to allow the user
to add data.

There are 2 problems I'm having.  1)  If an Id is selected, but the user
inadvertantly bumps the scroll wheel on the mouse, it changes the subform ID
and we end up adding the data to the wrong ID.   2)  If an Id is selected
then the user clicks in another part of the form or subform, they cannot go
back to the header to select a different Id.  

Any help with these would be greatly appreciated!!!