It is not really the program but the printer setup, at 36.13.2 you can setup different printers which can be the same printer with different configurations, If, for example, you use Hewlett Packard Laserjet printers you will need to add the escape sequence that tell the printer to print in landscape mode, check your printer manual for such code (In HP is I think is /027$l3O but check it anyway).
Good luck
Raúl Serrano