I am having issues with Movie Maker and adding audio files to it, apparently the "Microsoft Fix-it" tool doesn't work on Windows 8.1... I have changed my audio files to .wav or to Mp3 and I can see the waves, but no sound...I have turned the volume button all the way up, as well as used the emphasis on audio tool as well....can ANYONE help? This is a memorial movie that I have to upload to youtube asap...

Thanks!