Are you rendering with indirect lights on? They do generate a mostly black image at first, but you should start seeing the Red Ants™ after a while.

Could you try to set up a scene with a few of the primitives and render those? and see if they're black as well? And if they are, could you please upload them here so others could take a look at them? :) (the actual PZ3 I mean) 

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You just can't put the words "Poserites" and "happy" in the same sentence - didn't you know that? LaurieA
  Using Poser since 2002. Currently at Version 11.1 - Win 10.