Can't listen to audio from recovered file

I thought my last project was saved when I last shut down my computer, but when I reopened Reason, I got the "recovered file" notification. I saved it to the desktop, opened it, and there's an audio file. Cool. It shows the waveform, so it almost looks normal. But it has diagonal lines across it, and when I play it, I hear nothing. It's the only track, it's not muted, the volume is up, and if I move it to a new track, still nothing. Any ideas on how to hear it? Thanks in advance.