I have to agree with what's been said here. I too am majoring in CS, but I'm majoring in CS because I love the field, not because of what I believe may happen in the future to make my skills useful. The fact that you say you don't know if you like CS is fairly alarming if you're choosing to study it and pursue a career related to it.

You're better off doing what you enjoy the most; you can find work related to pretty much any major if you look hard enough and you'll enjoy doing that work much more than you would anything else (especially something chosen for its earning potential or future usefulness). From a practical standpoint, if you do what gives you the most joy you'll naturally be more willing to put in the time necessary to become accomplished in your chosen field, making your chances at success and (more importantly) happiness far more likely.