Hmmm.... i'm just learning Poser 6 and no expert - but: In the backroom there was a recommendation (but an old one) to change all imported highlights to white. When i recently looked at an imported PZ3 of "Jessie HiRez", the eyes, in the Material Editor they indeed had black highlights. If your black spot were changed to the color of your light source, would it make sense as a highlight?