Actually this gets more and more mysterious. I finally called Curious Labs Technical Support about this because I have a scene I spent quite a bit of time on and don't want to have to redo. As I mentioned in my previous post above, whatever the problem is, it propagates through the light set I created, so any PZ3 I insert that into has the same characteristics - no depth-mapped shadows. If I delete the lights, either by clicking them one-by-one or using a Python script I have, and then create a new light, it also won't cast depth-mapped shadows. Now here's where it really gets even stranger: If I save the figures from that scene, exit Poser completely, start it again with an empty scene and insert the figures I saved, the problem is back. No shadows. I went so far as to run a comparison between the CR2s of one of the figures I saved - a Don with hair - with its original CR2 using MS Word's Merge and Compare feature (a 7,000 page document gasp). I can't see what's causing this unless it has to do with the internal figure number itself, which gets changed to 10. The rest of the differences look to be all shader nodes and such, although there is an "auto-fit" block of data that is repeated several times. I'm not sure what that is. I'm going to send copies of the test PZ3 and LT2 to the technical support people today and let them have a look. I know, it's probably something really dumb that I did myself but thus far I haven't been able to track it down.