panasonic TH37PX70B

[g*****s]

Another one of these in,this one has a not quite solid green pixel line down very centre of the screen.Things seem to be pointing to D board replacement.Any advice would be great,as dont want to buy a D board then find its the panel.But its for a friend so trying to keep cost down.By the way was told drys on the D board can cause this but have given it a good seeing to and its still the same.Board number is TNPA4133.