There are two reasons why a barcode would gray out. The first reason,
and the most important, is that the barcoded forms technology needs to
be licensed via Reader Extensions. If you try to fill in a form that
updates the barcode at runtime (during calculate and not initialize) and
it has not been Reader Extended properly, it will gray out.The second
reason is due to the fact that the barcode grays out automatically when
it is over capacity. Even if you have a small number of fields, on
average ...