I have a MBP 2.4 SR week 30 with a Samsung screen (9C68). I have a feeling it does have the yellowing issue, which is most visible with a solid yellow tone. I've attached an image of the picture test if anyone can tell a difference with the white spots (it isn't the best picture, but it will do...). I originally thought there was no problem, but at second look, with a yellow solid tone, it seems there is an issue.