I would also like to know the answer to this. The setting for the Pro Grid Album include caption options, but it does not look like there is a way to get them to display. It also doesn’t look like there is anywhere to add a ‘caption’ within the gallery, so does it just use the title?
I have the same issue. I am new to NGG, but I enabled the Pro Lightbox and it does not work. I am running NextGEN v2.0.30 and Pro v1.0.6. Thanks!