Helmut,
 
Have you received an answer to this yet?
 
Mike

Great.  Having to make sure the options are set properly in the ISTech options is important for many of the special functions.  Although it does seem rather random as to when the "Save Settings" button shows up on various screens.  Anyway, glad you got it working.  We had to experiment a while before we got EDI set up just the way we wanted it.