Hey Guys and Gals, My 2012 11" MacBook Air (see signature) running 10.8.1 has been acting up today. My headphone jack, for some reason, is not working. See symptoms/info below: I plug headphones or a 1/8" jack into it and it continues to play through the internal speakers. When a cable is plugged in, only three outputs are available: LogMeIn, Internal Speakers, and my AppleTV Restarting (multiple times) hasn't helped The first time I restarted, it took about 5 minutes to boot to login screen rather than the normal 3-5 seconds. I've babied this machine - no drops, bumps, spills, etc If I put the machine to sleep and wake it up with the headphones in, they work sometimes Any Idea what's going on?