I saw, and saved, a post about this a while back, but my HD died and took the file with it. I keep getting the banded effect on Firefly renders of flat objects with textures applied, such as the square primitive I used for the floor in the pic. The same scene renders fine in the P4 mode. I occasionally get the same thing in a non-flat object, and not always on a textured square. The camera angle relative to the surface doesn't seem to matter. I've tweaked all the settings I could find that looked like suspects. Help?