I'll take a stab at it, but I may need some more info...

The center rear speaker icon will only light up when there is a Dolby Digital 5.1 soundtrack and you turn on 6.1 Surround. The 1050 will remember the setting -- I always left my 1050 set up to use 6.1 Surround any time there was a Dolby 5.1 input active.

As for the bass, I've got a silly question -- what's happening with your sub? I ask because with all the speakers set to small, all the information below the crossover will go to the subwoofer. If you are like me and haven't actually gotten around to getting a sub yet, you'll need to set the mains to "large" to get any of that information back. If you have a sub, I'd look at the sub level, make sure the sub is on (both the unit itself and "on" in the 1050), and none of your connections are loose. Does any of that help?

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gonk -- Saloon Links | Pre/Pro Comparison Chart | 950 Review