So I have a 13 inch Macbook Pro (I got it during the summer of 2010) and just recently, the headphone port stopped working completely. When I plug in the headphones, audio only comes in through the right earbud while the left earbud is silent. I've tried out 2 different pairs of headphones. I've tried listening to iTunes, watching a video on VLC, and watching a video on YouTube. The same problem occurs so this proves that it's not related to the program I'm using or the headphones themselves. Is there something wrong with my Macbook Pro hardware, or is there a chance that I can fix this by editing some settings?