I've had these two speakers in my basement for whenever I'm down there with my computer. Recently, the right speaker has not been working when I plug it into my macbook, but only my macbook. If I plug it into my iPod, it works strangely, but everything I plug into my iPod works strangely, like headphones, so I'm not concerned about that. My friend was over the other day and he plugged the speakers into his iPod and it worked fine, then i told him to pass me the chord thing, and I plugged it into the computer and both speakers worked. Now it doesn't work again. Thoughts?