well, you all know its christmas. I went and bought Sound BLASTER Live! a sound card that supports 5.1 speakers. then i went and bought the logitech Z-640 speakers. I went home, installed the sound card no prob. Set up the speakers, connected all the cords in the right places, the middle speaker cords into the sound card. But when i turn on some music, nothing came out of the speakers. i checked everything, in the instruction booklet, it said to hook the middle speaker cords to the sound card, thats what i did. But nothing happened. So i tried hooking up the same cords to the former spot that my other speakers were plugged into. Yes sound did come out. But only from the sub woofer, and the 2 front speakers. I re-installed the drivers and everything. Still nothing. Can someone help?