In addition to reversed polygons, you might have degenerate polygons (ones that form a line) or polygons where the first three points in the polygon form a line. This is important because some renderers (and this would seem to include Poser's) use the first three points in the polygon to calculate the direction of the normal. If your first three points are colinear, you get weird normals, and the polygons show up as dark spots that refuse to take a color or texture. UVMapper Pro will detect and correct degenerate, reversed, and colinear polygons if you ask it to. I don't remember whether or not UVMapper Classic does the same thing. Lynn Grant Castle Development Group