I recently mixed down a song that I have been working on and noticed that the waveform of the mix looks totally jacked. It basically looks like this... it looks like the waveform fell off or "melted" off of what would normally be the "center-line" of the wave. The mix sounds O.K. (not perfect or great or anything, but not audibly as jacked as the wave looks)... what's up? What did I do? How do I fix it?