I'm trying to get my system set up properly and have a few questions: 1) Are the av speaker settings independent of the stereo settings. ie. will setting front speakers to 'small' (and turning the sub off in stereo) affect stero sound as well? 2) What should the default sound setting be for Sky+ and my DVD player? I've found 'Hall' is good for MTV etc, but when do I decide when to use ProLogic and when to use the various PLII settings? I assume when Dolby Digital comes up on the right of the display, it supercedes the default setting. How do I know when I'm listening to DTS? 3) Is there any fool proff way of setting the sub? So far I've left the cross over at 80mhz (when should this be changed?) and I've gradually turned the gain up. 4) Is there any need for the high level lead if I'm not gonna be using it in stereo. I know there are a million questions there, but responses to any would be much appreciated!