no audio on playback WM Capture

[KarenS]

I'm creating a training video with WM Capture. I have a microphone. The video portion is fine, but my audio will not playback. I am running Vista. A couple of times the audio did playback for about the first 10 seconds, but then stopped while the video continued. Now I can't get any audio at all. The setting for "Use Vista Audio Recording" doesn't work at all (I guess because I'm using a mic). Universal Recording doesn't either. I have tried every combination of settings with no luck. Please help. I need to get this video done and I am very disappointed with this software.