PS CS5 print window question
Your talking Mac all I know is Windows. The first thing I would do is uninstall and reinstall the drivers. On Windows 7 after the drivers are installed I would go to Control Panel --> Printers & Devices and set my options (defaults) for the printer in that window.
Like I said I'm talking Windows but I'm sure Mac has the same type of setup but with different names.
Have a nice day