Sometimes I cannot play sound on my macbook speakers. When I go to adjust the volume it wont let me do anything and there is a red light in the headphone slot on the left side of my computer. I know the problem with it because I have asked about it on here before. The way I fix it is by putting in headphones and taking them out...this flips some switch inside. The problem is this is only a temporary fix. I was wondering if there was anyway to permanently correct this because it just always seems to randomly stop working. Thanks