My speakers don't work when plugged in the back of the PC or the front. In linux it works in the headphone jack but in windows it doesn't work at all. It doesn't detect the speakers when in the headphone jack. But it recognizes it in the back port but it says it is not plugged in. I installed a driver for my motherboard (DX38BT) and it works when plugged into headphone but crackles when sound is higher than 50%. In linux it doesn't do that so it's not my speakers. So what else could I do?