Most of the new features of Poser 5 were exciting, but I never use them. Poser 5 runs and renders slower on my older computer, even with 512MB RAM. Forget rendering complex hair from Neftis. The PNG thumbnails are nice. Poser 5 doesn't need BUM bump maps, so you can save some work and hard drive space. In the end, some of my important Poser characters don't render in P5, unless I change them. I've been using Poser 4 almost exclusively for months, but I'm yearning to go back to Poser 5. Things that gripe me: 1.) CL's copy protection scheme. It must have caused problems, or why would they eventually get rid of it? 2.) The manual is useless since there are so many errors. 3.) CL says Poser 6 will be essentially a "fixed version" of Poser 5, with no features. So why not give it to us, rather than ask us to pay once again?