i did the following test: i imported the external obj directly into poser as a morph target... that worked (though of course the morph does nothing as it is the default shape) then i changed the external obj into a 3dm for rhino, and in rhino made NO changes to the file at all, exported again as an obj (several times testing different options checked) and in poser it still tells me wrong number of vertices. i checked the options in obj23dm and the only option i had checked was include groups, i tried with this unchecked and got the same error... the only other options to check are textures, materials, and normals, all of which will add extra vertices so i leave them unchecked always. so i guess the error is occuring either in the translation to 3dm, or in rhino when it exports, even though i didnt change anything... ARGH