Well, this is a new one to me.  I am setting up an outside environment in P6, and I'm using Mystic-Night's Rock Pack from the Freebies section.  When I render, the rocks are actually catching inverted light... meaning, they're dark where the light hits, and light where there should be shadows.  I'm pretty familiar with Poser, and this is actually a first for me.  Any suggestions?  For some reason I'm having trouble finding good, free rocks/boulders so hopefully I can solve this problem.

Thanks!