Well, in theory I would tend to agree that the additional rooms shouldn't really add that much of a drain on system resources. Unfortunately, the testing that I have done would indicate a different story. When I open the same file in all three programs (Propack, P5, & P6 - all with the latest updates) and render 1 frame using the P4 rendering engine, the time slows dramatically with each new version.

For example: Here is an image of Marvel Comic's Tigra. When rendered in Propack, this image took 36 seconds to render,  Poser5: 1 minute and 4 seconds, Poser6: 1 minute and 16 seconds. Now, I understand Poser7 is supposed to be a slight speed improvement over Poser6...but does it cut the time in half (or even close) for a given render?

Back to the matter, it's the same file in each case, I'm not using any dynamics whatsoever, and it's essentially the same rendering engine. So I have to ask, what has changed? The only thing I can figure out is that the additional pull on system resources from Poser's newer features has bogged the program down. Keep in mind, I'm not saying they should do away with these features. I like them enough...but I want to turn them off and render at a speed that is at least in the ballpark of Propack with the P4 rendering engine. I'm mostly an animator, so when we talk about doubling render times in seconds or minutes for a single image...we're talking about hours or even days when it comes to animation.

It is a dream of mine to one day delete Propack from my computer, and carry on with a newer version of Poser. Unfortunately, that's not going to happen with Poser 7, or with any other version that I'll shell good money out for before EF recognizes the need for better system resource management. On the other side of that, I'd be willing to pay quite a bit more for a version of the program that let me do just that. Perhaps there is a need for a Poser Professional version of the program and Poser Hobbyist version?