i've got a set of the inspire 6.1 speakers from creative, and for the life of me i can't get any channels but the front left and right to work. they used to work fine, but for a while they just refuse to cooperate with me. I've tried them with my A7N8X's onboard audio, a soundblaster live 5.1 and i just bought an Audigy 2 ZX to try to solve the problem. None of them will work. I"ve checked all the connections and played around with all kinds of settings, but so far nothing has worked. Am i making some stupid mistake or should i just buy new speakers?