I was watching a friend's Sony KP-51WS500 last night and we noticed that in the lower left 3rd of the screen the color blue was mis-aligned with the other colors. Everything had a blue 'halo'. The rest of the picture seemed fine. He used the 'Auto Focus' button a couple of times, but that did not seem to help the problem. I did a search and found some posts about 'Blue Focus'. Is this the same problem/issue ? Thanks !