I purchased my 3802 two weeks for 720 at ultimate electronics and really enjoy it. My only problem with it is dd-ex. I have heard it has the capability to put out dd-ex but without the name being used. I have set my receiver accordingly and am able to receive the surround back signal on all the dts-es titles. the only disc with the dd-ex that lights up my surround back led is Atlantis. When i put in LOTR or Episode I there is no signal for the surround back. Is the reason for this something to do with the dd-ex flags? Shouldn't every disc with dd-ex light up my surround back signal?