I'm running Poser4 on NT4.0 with service pack 4.The only time I've seen Poser4 barf like that is when I have a scene that's way too complex.I think the limits are with the software not the hardware.Does anyone know just how many polygons Poser4 can handle?I've been experimenting with rendering and watching the task manager and Poser really isn't taxing my system that much.I'm running dual PIII 450's and 256megs ram.With netscape open I did a render of the P4 woman with a 20 meg tif texture on it and I rarely spiked above 51% of my cpu's and 180 megs of ram or so during the render.