I'm using a pentium 4, 2.8ghz w/1gig of ram and a 256mb graphics card for my animation. My question is this I'm trying to render out some pieces of animation. Different sets of time blocks (8 sec.- 1.5 min etc). When it gets to a certain place in the rendering at about 80% it stops and says an unknown error has occured and crashes the rendering process even at low settings. What could be causing this? I really need help because I'm working on these pieces for a Planetarium show and I need to get them done. If anybody could help it would be much appreciated!!! We're trying to use this program as our primary animation package for the planetarium but would like to settle these problems first.