CompuServe Messages

I've had the same problem. The object that I morph shows bands on the material. I can't figure out what's wrong with it. I've also had problems with the objects showing up as matte black instead of their assigned materials when I try to render the animation. It's fine when I render a single frame. I've also had problems with the lighting. On the first frame of the animation, the lighting is fine. Then throughout the animation the lighting slowly goes darker, sort of like fading to black. Any thoughts would be appreciated