General sound goes off by itself

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http://androidforums.com – i love my S3, but this is driving me crazy. for no reason the sound will stop working for notifications, and or feedback. I triple check the sound levels and other settings and everything is on, mute is off. The only way to restore it is to powercycle the handset. This is so stupid im thinking of factory reset. I also checked for updates and there are none available. Please help!! Thanks (General)