> I cannot get the vertical line to STOP at the last record in the group.

Instead of having one line in the detail band ... draw two lines in the detail band. One for the top half and one for the second half. Then use some print when logic in the bottom one that suppresses it when it's the last item in a group (which means your data would have to have a field that flags which detail is the last one in the group).

Cathy