Of course; I'm sorry we couldn't do more than we could.
Hey, I just remembered something.. The bad monitor has this theme mode button, and when you press it toggles some picture presets under names like: Movie, game, web, or picture. I used these presets before, and the presets have very extreme gamma, contrast, and sharpness qualities to them. I believe that excessive use of these modes may of caused the problem with the grays.