Some very interesting stuff turning up here. Thanks guys. zbuffer.... aha.... Can one change the size of the zbuffer, or some kind of quality setting on it? Or is it dependant on the amount (or efficiency of utilization) of RAM on the graphics card? nerd: I went in and checked that. It was set for quality as opposed to performance, at extreme right of scale. It occurred to me: there are a bunch of profiles in the avdvanced setup for the card. For various games etc. Maybe Poser6 should have a profile too? :] Fish