Unwelded groups - means that the mesh vertices are seperate Not relevant but mesh imports from DXF format invariably have unwelded vertices It may be that regrouping in UVMapper split up the vertices Solution is to import the mesh into Poser with 'Weld' option checked - at the same time you could also scale down the figure as appropriate Kudos to you for modelling a beautiful cartoon horse - GreenWithEnvy :) Godspeed in adjusting the jointing params with the jointing tool