See below the small sketch. When watching for example Season 1: Episode 4 of Little Britain - on the Ann scene when she/he is working in the library. The picture is quite light in colour - ie white at the top(library ceiling) then the library in the main body. The thing I notice is that a black slanting line comes down. It happens on my projector, my lcd monitor and on my sisters pc too! Watch light scenes carefully for this on your HCPC and see if you get the same? Or if anybody has fixed this please can you tell me how? (Thanx) The red circles indicate other places where this defect is sometimes noticable.