This appears to be a somewhat common problem among the users of Vista/Windows Movie Maker, and I did not find any help, so here is our solution.
- Issue: the movie previews work fine when you watch it within the Windows Movie Maker. However, when you publish it, the video is just black screen, but you can still hear the audio. Changing publishing settings does not help, and the video files themselves are ok, no codec problems etc. there.
- Solution: the affected clips in our case had “mute” setting applied to them (in order to have a separate soundtrack; click under Timeline to expand > Video > Audio [rightclick] Mute). When mute was removed, also video was published fine. This must be a bug, and a weird one. Well, setting the sound level for each clip to zero worked fine for us as a workaround, but MS should fix the software, of course.
Our system uses Vista Home Premium, the Movie Maker was version 6.0.6000.16386. Video clips (mpg) were produced by Sony DCR-SR52 camera.