I have Poser 5. It's still a bit buggy, and a memory hog, but there's stuff it does well. But how can I make a prop with a bump map (or a displacement map) (or should that be a bump gradient map?) which will work properly within Poser 4? Yes, I know about the version-number tag in the files. And I think I can puzzle out, from samples, what can be deleted. But there is still stuff which isn't clear. Can I assume that the P4 render engine in P5 will show similar results to plain P4?