I just installed Poser 5 and I am amazed by how slow it is. I run 2.2 Gz with 512mb of memory. I am also having other problems. After I render a scene the screen won't go back to posing. I also run True Space 5 and Carrara Studio. Neither of these apps comes close to Poser 5 in the amount of memory used. So far, I have found Poser 5 to be unuseable for all practical purposes.