I just got a new Toshiba 57inch (model: 57H81). I here people talking about converging their televisions, and I see it in the Options menu. I just have no clue what it does, and how to make it look great. When I click on it, it gives me a crosshair with different points etc. If anyone knows how to do convergence correctly and could explain it I would appreciate it. Also, what is the optimum settings for Color, Sharpnes, Tint, etc? Thanks.