Normals are a funny thing. In a 3D file format, the direction that the polygon surface is facing (in or out) is typically determined either by the order of the vertices in the face--whether they are numbered in a clockwise or counterclockwise fashion--or by a separate piece of data which is the normal vector for each polygon. The wavefront OBJ format uses both of these techniques, which is what causes problems. Poser uses the vertices order, whereas other 3D programs prefer the normal vector data, and often their "invert normals" commands only affect the latter (thus having no effect in Poser) This is why UVMapper offers both ways to reverse normals. The winding way reverses the vertices order, which is what you need for Poser. -Adam