It seems like I am doing *exactly* what is in the documentation. Am I miss= ing something? Thanks, Michael ------------------------------------------- Michael Braun Homer A. Burnell (1928) Career Development Professor,=20 and Assistant Professor of Management Science (Marketing Group) MIT Sloan School of Management 100 Main St.., E62-535 Cambridge, MA 02139 braunm at mit.edu 617-253-3436