Hi Philebus, I just downloaded Vue4 yesterday. As for the rendering, it is noticeably faster than Vue3.1 which is good news for me as I do a lot of animation. My machine is similar to yours, 3.1GHz but with 512MBs. This is good advice from wabe about the RAM. So far I haven't had any crashes but did with Vue3.1, always on animations. Since Vue4 works and I haven't changed anything on the PC, it must have been down to the software. Kevin