It just creates a UVmap of whatever polygons are selected. It's mostly designed for making things like Tatoos. You select what polygons you want to be part of the new texture. Then create a UVmap for it so you can apply a separate texture to it. UVMapper works much better for this. Most people never use the one in Poser. I don't use MAC so I don't know why it's crashing on you. But I've heard people say to assign 180meg. to Poser to keep it from crashing. ScottA