Laptop Speaker Problems?

I just realized that, for some reason, my laptop is only playing sound out of the left speaker. I was listening to music, and realized that a whole part of my Flamming Lips song was missing. So I played around with the sliders in my audio settings and discovered that my right speaker won’t play, reguardless of volume. What’s more, when I try to plug in other speakers, I have the same problem. Is it blown, or could something not be sending the signal properly?