ihave a samsung LNT-5265F my xbox360 connected to it via hdmi, my HTIB connected to tv via hdmi and from my tv a optical cable to htib. i get great sound but just curious to know if it is really surroundsound or just pro logic sound? if i connect the 360 to htib and the htib to tv i wont get 1080p only 1080i. so my question is, you think im already having 5.1 sound or not? what should i do to get the perfect setup? or should i get the microsoft HDMI that splits the picture to tv and the sound to HTIB with a optical adpter. i got the monster HDMI cable m1000hd serie. thanks

i have a samsung HTIB 1200 watts optical 1 HDMI IN AND 1 HDMI OUT