I have a Monster Fiber Optical cable connected to the ADVANCE SCART CABEL , and a surround DTS system which support PRO LOGIC2 and the sound is much better if I choose ''Digital Stereo'' then 5.1 Surround in the Xbox 360 AUDIO menu.. In Digital Stereo I get Full surround and much louder and powerful sound.. Is this because of the PRO LOGIC2 system which displays in the receiver. ? Anyone knows ? Pro Logic2 doesnt display if I choose 5.1 surround in the xbox 360 menu, It has to do something about the ProLogic2, don't yah think ?