Yeah, I had both installed on my old system. PP tended to get forgotten about tho until I bought a new PC. Poser is my primary app. I haven't had much probs with PP until recently (virtual memory too low on big renders) I believe there is a CL patch for users with over 1gig memory. So to be honest, I really don't know what to do. Is P5 worth the hastle of having to install it and re-arrange my libraries? I admit, I'd like to do a few reflective style images which only P5 will allow to do properly... With SP4 does P5 run fast and smoothly or are there times (such as rendering) that will be MUCH slower to PP? Thanks again, Fang.