You get a polysurface when you use the create polygon tool. The problem start when i clik on create a psd networks. I get then an error saying that it only works on nurbs and polygonal objects. Yep the material is shaded (with blinn) and hardware rendering is turn on.

However i tink if found a work around it, its by combining a polygonal object (like a plane) to my polysurface object and then seperate it. When i did it, it seems to be oke to use the psd network than. I don't know if that the best way so i'm still open for suggestions.

Ps. thanks for the quick reply