Last weekend, after I took my headphones out of the computer, I couldn't get any sound from the mac, and the volume controls on the keyboard didn't work. 5 minutes later I noticed a red light coming out of the headphone jack. I looked around for answers and apparently all you need to do is stick in a matchstick or Q-tip and wiggle it around to fix the sensor. This was supposed to fix the problem for good. It worked the first time. I could get sound from the mac and the next couple of times after unplugging the headphones, everything was normal. The problem has come up again, and I'm looking for a permanent fix. Am I looking at a trip to the Apple Store to get it fixed, or is there something I can do? Thanks for any help.