I was, how you say, dismayed to find 112M on my refurb G4 PowerMac wasn't enough to render a good scene with a textured Vicky and some props. Okay, I was ripped. On a dare, I turned Virtual Memory back on for the first time in years and upped it to 256M, then reset Poser's preferred memory to 135M. No crashes and the dreaded "Texture map could not be found or loaded" error is much, much rarer. Complex renders do indeed render. The only cost, of course, is that complex scenes are now dreadfully slow to pose on my 350MHz G4. I should, however, own up to not having a new stock G4 machine, and the microdelays you could get from mixing and matching different chip sizes (8, 8, 32, 64).