Watching ABC primetime movies over the weekend I noticed that I got NO center channel information. All dialogue came from my main speakers. My pre/pro said it was receving a 5.1 DD signal but it did'nt output what it should have. I know CBS transmits DD 2.0 which also has no center channel info but I can change that to DD pro-logic mode which gives me center channel audio. BTW, I'm using the optical connection on my Mits HD-400 STB. Did anyone else notice this over the weekend or for that matter anytime during their past HD programming?