I've got a nice 19" sony flat tube (trinitron) monitor. Have had it for about 2 to 3 years. I burn it constantly. I've noticed here lately (I have a very dark "black" screen saver) that the black that used to be is now more of a dark blue and there are a few light lines running from side to side. I just don't know what this means.... The regular picture still looks fine - but I'm very concerned about how it is changing the properties of the way it displays the black screen. Anybodygot any ideas or thoughts on the subject?