Hmmmmm..... -That's- one I haven't stumbled across yet; into the notebook of WTF it goes! I'm going to have to go scavenging and see if I can find meshes that do that on my system, and see just what it is. I know that you can lock Poser up with divide by 0 errors if the winding order on certain meshes is not what Poser considers 'correct'. What file format is that model in?