I have 512 ram but I still have trouble with Vic 2 and her updo hair. I use her with out the bump maps and I halfed the updo hair texture, that helped alot, but freeze ups still happen on occassion, especially if I add much to the scene. I shudder to think what poser5 and new characters of the future, will want in terms of ram. Maybe we all need to not only add more ram , but maybe new graphics cards or something? I wish I had the answer!