Quote - If comparing, compare also the amount of memory needed to render some scenes. On my quad core computer with Vista 64-bit, and 4 gigs of memory, Poser 7's FireFly simple crashed to the desktop when it reached about 1,75 gigs, but Poser Pro (1) did not crash at 2.5 gigs.

lmk

Poser Pro has better memory usage if I recall. But I believe you are severely limiting yourself with only 4GB of RAM. I have read and heard many places that if you are using a quad-core processor, you need at least 8GB because each core needs at least 2GB of RAM for best operation. What you are doing is equivalent to running Windows on a single core chip with only 1GB of memory.