Thank you for your very helpful response and sorry for my delayed response, it's been a lot lately. And when I was finally going to reply to your email, I made a mistake: I was going to press "yes" (the problem is solved) but accidentally pressed "no"! How do I change that?
Anyway, since I happened to press "no", I can ask one more question. When I print I get a very large margin at the top of the paper, although it is much smaller on the screen. I have tried to make some changes without success. What do I do?