I can confirm InBlack's statement. I had the exact same problem with Victoria 2.0 and high resolution textures on a Win98 computer with 640 MB (that's 640, not 64). I changed my operating system to Windows 2000 Professional and haven't had the problem since then. I do have some minor problems with parts of the interface disappearing from time to time, but if I minimize and then maximize Poser, the interface shows up again. I paid $219 for Windows 2000, but you can find upgrades for a whole lot less if you shop really well. I wouldn't have done it, but I had just bought the Pro Pack and a bunch of models and textures and really wanted to get it to work right away.