Well, in response, since the flicker problem instantly resolved as soon as I scaled up, without changing other factors, doesn't that indict the too-small-scale of default Poser and the decimal problems associated with it? However, from your last sentence, it seems you are pointing the finger specifically at the Firefly render engine, as opposed to Poser itself. Okay. But was the Poser-4 engine also non-CL and then tacked on? Because I get flicker with that engine also. I am rendering out to individual images in full-sized loseless TIFF format, 1.4MB per image. When assembled into a quicktime clip, I always first observe the uncompressed gigantic film thus created...before exporting out to a .mov compressed clip. To make sure it had nothing to do with any codec or Quicktime issue, I did a test directly out to .avi. Flicker. My minimum shading rate has been consistently set at 0.2, with pixel sample at 3. ::::: Opera :::::