Not an option for me guys! :) I never mess with my OS settings. I've been running XP Pro for about a year and a half. It's "rebooted" (XP version of "blue screen")twice during that time and then only because I hadn't defraged regularly enough. I like my desktop "eyecandy" I'm afraid :) If the software can't work with my OS.....the software goes :) But....that's just me!! I'm sure that by adjusting control panel settings to "maximize for performance" would speed it up....but I've heard others say it didn't make any differnce at all...who knows. Actually Poser is working great now that I figured out how to eliminate the hourglass problem. I've created a new library of the content I purchased and have loaded each item.....works great. Even all those "hi-res" textures apply without a hitch....and selecting a new texture in the material room is not a problem. The face room is a hoot! I really like that a lot! The expressions you can create are amazing! The rendering of a scene does not take much longer than the propack demo and it looks like you have the option of using the firefly renderer or the Poser 4 rendering engine (useful I guess for older files that use .bums...or so it says in the help file). Actually, I'm pretty pleased with it now that I've calmed down and given it all a closer look! The .pz3 files are really huge though! Even using the .pzz compressed setting doesn't seem to help that much. Oh well....that's what cdr's are for I guess!