I'm actually rendering the AVI, and watching what number (and therefore which AVI frame) appears on the object as each frame is rendered.

Also, I'm working with a blank scene - create new scene, create shader with AVI, apply to an infinite plane, and that's it.

I'm growing more sure it's an issue with the tweening. I can get all the AVI frames to show if I run a 1 sec AVI over 2 sec of rendered animation, but then each frame shows once or twice, but there seems to be no tween length where each one shows only once.

Thanks

R