Got a 15" PB 1.5GHz for fifty bucks at the bay. Everything perfect except the yellow tint of the screen. Like the new iOS "NightShift" view, but it cannot switched off... It migth be the ultimate device for night shifts, but I will certainly get a depression if I should be force to look all day at this yellow screen. Maybe another "Griff in's Klo..." / grab into the loo... Searching for solutions was either discouraging or without any helpful results. Anyone here having the same problem?