Like others around here lately, I began to notice PQ on both of my 722s to be not as good as usual. I discovered last night that both of my 722s, in HDTV setup, TV Type (resolution) had been set back to 480p. My natural assumption is that L512 caused this because I never did it. I do not know for sure of course. But it makes sense. Anyway, you all might want to go and check your receivers to make sure they're set to where you intended them to be.