samba - Feb 1998 - Variable substitution

Variable substitution doen't seem to work for the following:
	printer driver = %S

Is this correct?
-- 
Paul Rosham                                 connect.com.au
MIS Manager                              9/114 Albert Road
Ph:  (03) 9251 3601               South Melbourne VIC 3205
Fax: (03) 9251 3666                              AUSTRALIA