Hey Dima, forget what I said about IDL in animation, it does work after all, I just got some more replies in the Poser forum.

As long as you switch the processor preferences to use only one core, you won't get any of the random flickering.  I always thought it was strange that it fired-off random samples, but now it makes sense, it's not random at all, it's due to using multiple cores.

My apologies if you already knew about it but it's a new one for me that is!