Changing default person name

For reasons that I will not go into here, I have a first initial and middle name, not a first name and middle initial like most people. It played havoc with the registrar at my college .

My Address Book card has my first name as "G" and my middle name as "Ralph". Whenever programs automatically fill in my name, they use my first initial only. For example, Pages puts my author name as "G Kuntz".

Is there any way to get my default name to be "G Ralph Kuntz", other than setting my first name to "G Ralph" and my middle name to blank ("")?

Thanks, G Ralph Kuntz MD