swestph9,

I'm sorry to hear that you're having a problem with your unit.

Unfortunately, there not much I can do in the way of troubleshooting this particular symptom. I'd recommend calling 800-SAMSUNG to see if they can troubleshoot over the phone, or, if necessary, set up a repair ticket. The volume raising unexpectedly wouldn't be considered normal operation, and I'm not sure what to suggest.

--HDTech