I'm also having the same problem, with a "0724" serial number. Returned my first version to guitar center (after much resist from gc). They replaced for this one, also with a "0724" s/n and still no luck. I filed a tech report on the first product, but did not hear back within 3 days. If someone could contact me personally I'd greatly appreciate it! Really excited to add analog player as a part of my home studio!