Blank when exporting to .avi

[abite]

So I made an animation a while ago and exported it no problem as an .avi. Recently I've needed to make changes, but whenever I try to export it, it is a blank video.

There is no sound, so I'm not sure whether or not that is working, but the video turns out as just a black movie with the proper length.

When I test it in flash or export it as a .swf, it is fine, only the .avi is the problem.

Does anyone know why this might be happening?

[chuzuy]

I can't help you... but I'm having the same problem.