I got the following external sound card to make some awesome noise with my speaker set. It should be plug and play, but it so happens that when I plug it in and hook everything up, there's no sound at all. The speaker set I have works if I plug it in the laptop directly (or rather, if I plug the front speakers cable as I can't plug anything else). http://www.trust.com/products/product.aspx?artnr=14134 Would anyone know how I can workaround this problem and make full use of this external sound card on my Ubuntu 12.04 system?