Until recently, a user had the option of choosing a printer within their application software before clicking the Print selection. This allowed the user to be able to choose between printers that allow you to print on different sizes of paper.
For example, say the printer you normally use (default printer) prints on paper sized only up to 8.5 x 14. You have another printer you use for special printing that prints to larger sizes of paper (such as 11 x 17 or even 17 x 22). With changes in Windows, you must now change your default printer in order to have access to the larger sized paper options.
The current solution for Map My Land printing is to change the default printer. Go to Start->Devices and Printers. Right-click on your mouse and then click on "Set as default printer" to make the printer. The default printer will now be recognized in the Page Settings in Map My Land and will allow you to print on the sizes allowed by that printer.
Map My Land is working on a better solution to this Microsoft issue. We will keep you posted.