I just purchased a new pc with a creative 7.1 sound system. Also a 7.1 card in the pc. The last set of speakers don't play though. I have the center first left and right second left and right plugged in and they work fine... but the third set doesn't work. I know it isn't the speakers because if i plug them into the second of first set, they work. OK well hopefully someone know how i can fix this. Also... when i tried them.. i tried them while playing a song in WMP10... maybe there is a setting i have to switch??