I am sorry you are right except I forgot this is what I should have posted:

pdmVar.rtrept = "myForm"
Do Form &pdmVar.rtrept

This is the error

Error Message from Drawing9.0.00.3504 - 08/03/2007 12:40:05 PM - NB508 # sde
1
Message 1: File '\\gvsvr03\applications\foxapps\drawingpdm5.0\&pdmvar.rtrept' does not exist.
Message 2: Do Form &pdmVar.rtrept
Program: FORM1.RUNCHART
Line No: 34