Can anyone help me regarding getting my speakers to work, set up my windows media player but there was no sound coming out of the speakers, searched through the speaker properties etc and eventually got some sound , tried to watch something on youtube but the sound wasn't right on there so went back into the properties and obviously have clicked something I shouldn't where now I have no sound at all coming out of speakers but if I plug my headphones in they work, its a dell inspiron ,windows 8. Any help appreciated.