There are a number of ways to deal with this. In LW, you can select the polygons you want to have sharp edges and either unweld them, or cut and then paste them back into the viewport. You can also use the unweld command on points to achieve the same effect. You can also build in a small bevel on every surface you don't want smoothed. In UVMapper classic, you can use the split vertices command under edit tools, but this splits all vertices and leaves any surfaces that arounded looking faceted. In UVMapper Pro, you can choose which polygons to be affected by the split, and the smoothing angle, which works pretty well. Regards- Lemurtek