kaideee

I've been using the free version of Switch for years but now, suddenly, when I try and convert from MP4 to MP3, it goes through the motions of converting, but when I put it into Express Scribe it shows zero minutes of audio available. I don't get any error messages. It suddenly started converting into 'Groove' which I thought might be the issue, but I changed my default settings to Windows Media and it didn't make any difference.Any suggestions would be greatly appreciated. Thanks in advance!