I have followed the Simple Editor exercise beginning on page 545 but when implementing the page setup dialog I am having an issue with the margins. No matter what I set the right margin to, it prints the physical edge of the sheet. What is the solution for this? Any help would be greatly appreciated.

Is there not anyone here who will help me with this? I believe this is a simple question, but as a beginner I just don't know where to begin looking for the answer.