It doesn't sound as if your mesh has any groups in it - they need to be there, and their names need to match exactly with the actors in your CR2. If you think you should have groups, this can be tested quite easily by opening the mesh in UVMapper and using the Select by Group function - which will list what's in there. *** Pakled, yer wrong. :) Poser ignores MTL files - and in any case, they store only material definitions, not groups.