Also don't work across a mapped/networked drive. I used to map my poser stuff to a P: drive so no matter what machine I worked on, all the files would work. That slows poser way down. Poser uses no hardware accel so it has to compute lighting for preview and rendered modes using your processor. That's why I cringe when I see light packs with like 50 to 100 lights in them. For flat shading each triangle does a dot product with the light vector. For smooth shading, each vertex does a dot product. This gets worse as you add lighing nodes etc. A dot product is 3 float multiplies and two adds. For a 1000 vertex model that 3000 multiplies and 2000 adds for just one light for smooth shading. And that's just one light. Ack! Try 50 lights. And don't even start with ray tracing and shadows.