What's frustrating is that DAZ was actaully showing images and speed comparisons between SP and MP renders before Bryce 5.5 was released. For some (as yet) unexplained reason they droped it from the final version. I too was a beta tester and I just loved the Mac SMP support. Even though it only reduced render times by about 33% that was really significant. It was rather annoying to go from -33% beta render times to + 15% final render times when 5.5 Mac was released. I'm still hopeful DAZ will offer a "dot" update to address this as well as all the other bugs they introduced. Best; Dan