Running Poser v4.0.3.127,I routinely get two types of crashes.(1)A complete computer-freeze-up Poser crash when moving around complex scenes. This crash is cured by setting the graphics hardware acceleration to none! Of course, this slows down every other graphics program application. (2)Crashes of Poser only (ie. will respond to alt-ctrl-del). I get this from trying to render, usually after the program has run a few hours and is just apparently tired of rendering. I have found no cure for this crash. Same crashes occur on two different PC computers (Win98 2nd),each with different type but powerful processors and with plenty of memory. Any ideas? Thanks.