Unfortunately, Poser's only a 32 bit application on both the MAC and the PC, so regardless of what memory you have installed on a 64 bit machine, P5 will only ever be able to utilise a maximum of 2GB data space. Basically, once its assigned half of its memory range to the program image and OS interfaces and other system stuff, that's the total range of addresses is capable of represnting in a 32 bit word. Even if it were to survive for another release I suspect it would probably still be several years before we actually saw a version that was capable of running in as a native 64 bit application, and therefore being able to exceed the 2GB barrier. I've gone into this a lot in the past, but the upshot was that P5 was pretty much obselete when it released, there were already plenty of signs that P4 users were getting close to the maximum capability of the (32 bit) software, and it was no stretch to see that the next generation of DAZ figure were going to push things even further (ergo morph injection, a kind of manual disk buffering). Not to mention all the new functionality which squeezed the envelope even further. Not that any of that really matters, since, with a better design, Poser could probably effortlessly running at less than 100MB so far as anything that people are actually managing to do with it. There is incredible inefficiency, literally 90-95% or more of the memory use is wholly unnecessary. Maybe, Poser 6, if there is one, or maybe DAZ|Studio will give us an application actually raises users expectations off the floor. Bill