Try getting it to print a 1 somewhere.

ProConnect doesn't do zeroes.

If you want to input a zero, use negative 1 (=1), which it will read as a zero which is not nothing.

Blank is a nothing, but -1 is 0.

0 is a nothing and it will print a blank.

=1 is something, but it reads as a 0 and will print a blank. 

If that made sense, welcome to ProConnect Tax (and Lacerte).