After experiencing frequent lock-ups while trying to render large textures in Poser, I have resolved to upgrade to XP. I have a Athlon 1800+ w/512 megs of DDR ram and this machine cannot render the large textures with any more reliability than my PIII 850mhz. So, acting on advice received in this forum, I am upgrading to XP tomorrow. What am I in for? My system is relatively clean, so should I attempt to upgrade or is a full reformat in order? Any and all advice would be greatly appreciated. Thanks