What do you mean? That a material file (is this a Poser pz2, or a DS native .ds, .dsa or .dsf file) has no effect and you have to find and apply the textures manually through the Surfaces pane? Or that you are getting error messages? Or that you can't find the material files (pz2, ds?) in the Content pane to start with? What version of DS is this? Could you give some examples of things that don't work?