Hi all, When I enable the brightness sensor option, I see a bar on screen getting smaller and the brightness gradually gets lower and lower. It seems to end up with a very dark picture on the screen, regardless of the amount of light in the room. It's about the same as if I had set the brightness to 0 and the sensor off. Does it sound like my set is faulty? What is supposed to happen? Many thanks for any help. EDIT: I just tried putting a lamp just in front of the TV and the brightness sensor bar then went down to about 1/2. So I guess it does work to an extent, it just gives a picture too dark for the amount of light in the room.