i've bought these headphones: http://www.trustedreviews.com/mp3/re...-Headphones/p1 The phones come with a coaxial to digital cable. When i connect it to the dvd drive and decoder it works perfectly! On the other hand when i connect it to my xbox 360 or pc via optic cable it doesn't work but it should. The optic cable i bought was: http://www.worten.pt/ProductDetail.aspx?pid=03640199&oid=6|9203|9204|92 07|&c= The system is connected as the instructions: http://files2.europe.creative.com/ma...ltllingual.pdf Is the cable compatible?. Does somebody knows how to help me?