garbled sound in playback

I posted this the other day and am hoping to get some input:

I recently downloaded and have tried using Sonar Essential X2 (build 306) - I was able to capture an audio track and the real-time montoring was fine - when I played it back it was garbled -- an example file is available at https://www.yousendit.com/dl?phi_action=app/orchestrateDownload&rurl=https%253A%252F%252Fwww.yousendit.com%252Ftransfer.php%253Faction%253Dbatch_download%2526batch_id%253DWUJiTmZkRkVnYU9VQU1UQw

any ideas?

I'm just doing some 16-bit recording using an M-Audio interface for recording and playback -- never had this issue in Sonar7.