I'd have to see your specific example, but I doubt any new vertices are created. Consider the four polygons below (the plus signs being the actual points on the mesh) This is being viewed from above. if you were to pull that middle one up toward you and move the ones on the sides and corners toward the center, you would create a spike sticking out of the mesh. The four polys would become non-planar and may cause rendor errors, but poser's 100 degree smoothing angle covers a lot of sins. Veiw the mesh in wire frame mode, see if you can spot where points are being stolen from.

+---+---+
|   |   |
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Message edited on: 07/26/2004 23:44