I have a default ground shader(StoneandRocks) on an infinity plane with a client logo, models etc and camera move in.  Everything looks great except a terrible flicker in the animation on the ground. (Same terrible flickers in using shaders on the ocean object too.  

I have to blurr each image in paint program (over 200 frames) and then rebuild the animation to use.  I render frame sequences and then put together in an NLE.

My question is....How do I get rid of this within Carrara 6Pro.  Is it a shader setting or some other that I haven't found yet.  (Only 4months in as a Carrara User and other prog I've used LW doesn't do this)

Any guideance would be appreciated as I love this program.

Cheers