Go to File > Print.
From the Page Scaling pop-up menu, choose Fit to Printable Area.
Let me know if that works?
In the Print UI for Reader XI there is an option that reads "Chose paper source by PDF page size", select this option.
Set the printer to use "Auto Select" as far as paper size too.
Hello there ! I can remotely connect to your mac and figure out what the issue is. I have sent you an offer for this service.