I mad a new model last night, by the .PHI file method. One of its parts / groups was named inner_wheel_handle, 18 characters. My Poser 4.0.3 kept on saying that it couldn't find any geometry for this or that of its parts. Finally I used my RSR2OBJ to translate its mesh .RSR file back into .OBJ mod , and I found that in the result the name inner_wheel_handle was truncated to inner_wheel_hand . When I shortened this name to less than 16 characters in my .PHI and .OBJ files, my Poser behaved correctly when working from that .PHI file.