I have Vegas 7, I know old. And whenever I put a WMV file into the timeline, which plays fine outside of Vegas, the audio goes into the timeline but the video does not. I've tried importing and everything.... PLEASE HELP!!!
I haven't experienced this and I'm sure somebody else here has, but since no one has chimed in yet, it seems I heard about this somewhere....
Delete the clip from the timeline. Change the filename extension to .vob from .wmv . Then bring it into the timeline again. Let us know how it goes. Anyone that knows better than me, feel free to chime in.
Oops, do what Eugenia suggested. While I was composing this, she posted her answer.