Setting printer.landscape on HP III

Can someone help me out there?

I was trying to set the landscape property of the printer object using
an HP III clone.  When I assign either PoPortrait or PoLandscape to
the printer variable, I receive an exception that the printer does not
support that setting.

I used the same code on an HP DeskJet 500 and it worked fine.

What am I missing?

It will be difficult for me to check back on this newsgroup for
several days so could you please respond via email to:
     j...@insightsys.com

Thank you in advance for you assistance,

Jay Kaplan
Insight Systems                 Phone:  (404) 873-0058
1718 Peachtree St. N.W.         Fax:    (404) 873-0063
Suite 670                       email:  j...@insightsys.com
Atlanta, GA 30309