The vucket size is the size of the square 'chunk' that Poser renders each time. By lowering it down, Poser is calculating the rendering info for a smaller area, therefore requiring less memory at any one moment. It's a bit of a balancing act, really. The smaller the bucket size is, then the more 'bites' Poser has to take to complete the picture, which can increase render times... on the flip side, by lowering the bucket and decreasing memory usage, it takes less time to do each square, thus reducing the time. I'm not sure quite wat the ratio here is in terms of increased/decreased render times (and being honest, I'm not sure I really want to go through umpteen different renders at differe bucket sizes just to find out for myself!!): anyone else got any ideas? jonthecelt