What can be done to cure a grainy picture? Is this something that calibratoin would solve? All my colors, tint, contrast etc.. seem fine, but would fine tuning them take away the grainy appearence I get from my RP56? Now that some have mentioned a calibration dvd, I am hoping that it is something that I can cure without buying a new DVD player. From what everyone else says, the RP56 gives a great picture, Im just trying to achieve this. Just out of curosity, what player gives the best picture for around $250 or less?