WOW! Is that it? I will give it a try. Strange that the Zbrush DVDs that I'm using to learn specifically state that you need to use a 16 bit tif. Maybe I missed a step or didn't comprehend what they were saying. Does Mental Ray stand alone support 16 bit tifs? Thanks Vlad. By the way, I bought a Mental Ray Tutorial off of Ebay from a guy names Vladimir. Is that you? If so, thanks. I am learning a lot from it....