On my Toshiba 50H82 there is a horizontal white line running through the middle of the screen to both sides. I did the 56 pt convergence a couple of days before and I would work on it for 15-20 minutes and then watch a 1.85 disc for 20-30 minutes before continuing again. I did this about 5 or 6 times and now the line comes up. I'm not sure if I've seen it previous to this but it is fairly noticeable when it is daylight in a movie or when there is an explosion. Would you guys say this is burn-in? I thought it wasn't because it's only one line and not the whole grid. Also, could I have squeezed the convergence too much? After doing the 56 pt, I had to lower the height of the picture because everything was stretched. Oh yeah, one more question: Are you supposed to reset the 9 pt convergence before doing the 56 pt? I was looking into doing it on my friends 50HDX82 and I wanted to know if that's needed. Thanks in Advance... EDIT: By the way this is not related to the ghosting vertical line on the Toshibas.