Yup - I am going to send it in. I tried calling into S&W Customer Service a few minutes ago. I got into the queue at 5 minutes before 6 PM EST, waited on hold about 10 minutes, and then at 6:05, they just dropped my call. Now the phone says they are closed for the evening. :-( I'll try again tomorrow.

Thanks to everybody for the diagnosis assistance! You are all an awesome help!