Thanks for your thoughts. I hadn't thought of outputting the anims as image sequences. However, even that has not solved the problem completely. It's really strange, because the original avi anims from Poser 5 do appear to be complete, and will play just fine in Windows Media Player or elsewhere. It's not until I try to re-encode them (even using the same codec I used to make the avi in Poser 5) that things go bonkers. Even more strange is the fact that it STILL HAPPENS even if I ouput as an image sequence and recompile in VirtualDub, as you suggested; when I go to encode the sequence as an avi, I get an ouput avi file that has the picture shifted or slanted with weird coloring, which is the same thing that happens if I try to re-encode an original avi output from Poser 5. This makes no sense to me. It's as if there is something in the images themselves that throws off the encoding process in the video editor. I never have this problem with avi output from Poser 4. Well, I'm still stumped, but thanks again for your input.