I am trying to enter New York state drivers license pin and it is supposed to be an 8-10 digit number on the back of the drivers license (that's what is says in the critical diagnostic).  On the input screen, it will not allow more than six digits.  Then when I tried to e-file, it was rejected because it says the number can only contain numerical digits.  The PIN on the back of the license is mostly letters.  What am I missing here?