Get your taxes done using TurboTax

I'm trying to create a new account to prepare my son's taxes and it's locked me out and won't let me go forward.  I have been a TurboTax member for many, many years and have always used your program, however, this year the disc I purchased is not adaptable to my current computer system any longer.  I prepared my taxes yesterday and am trying to do my son's.  Please HELP me.

Marguerite M Miller