Fortunately I can render it on one of my other machines, but this is my fastest machine and it's really annoying. At least I'm not the only one. I really think it's a video driver issue. What kind of video card do you have? What are your other system specs. And, dang, each one individually! That would take all darn day. And you do know that then, after all of that, if you plan on using the Alpha you have to find a way to invert each and every one, right? -Tim