Audio Wont Work Now.

[J S]

I was able to get my audio to work before but now it doesnt. Whenever I tape
something and feed it through Windows Movie Maker it's always on Mute even if
the Mute isnt checked on it. I took old footage that I had made before that
worked on it. Now it doesnt work because it has now sound. But if I use a
clip that I download it does work. Does anyone have any ideas?