Thanks for the feedback. It seems to be the consensus that the shading issue is coming from the fact that I may not be in item mode then setting up the animation. The way I have it set up at the moment is the geometry is a child item of a locator that is being animated. When I select the locator, to change its properties, I am in item mode. Selecting the last frame in the animation I type in a new value in the "Y" channel (-360) and that's it done. As I understood it this is the correct way to animate a "turntable spin”. Is there a different way to do it that will solve my problem?
Thanks so much

W