I'm just glad I didn't install SR3! I have a P-IV 1.7ghz, XP Pro, 512 DDR Ram, NVIDIA GE Force 2 video card (which I don't believe Poser 5 even uses). Works fine for most stuff. If I need more than 3 characters, I do them individually and either export as .obj's to render in Vue (which is a much better rendering software and provides an easy to create environment to place characters in) or do individual renders and set up the layers in PsP 8. I'm done wasting my time waiting for CL to do anything useful with this software. Will use it until someone else comes up with something better that accomodates the models I've purchased.