Make sure you have the latest service release for Poser 7. A standard windows update that I received quite a long time ago fixed this issue when it occurred on my vista system way back then. I also installed Indeo which was the advise I got from Jepe, a vendor here at R'osity, my problem with this was solved with one windows update, though. You can find amovie.ocx on the net but where I couldn't tell you, it's been a long time since I have seen someone post about this issue... sorry, I just don't remember. Jepe is a good person for this question, I believe. You might try to Instant Message him, he is a prompt and courteous individual.