The dust spect that is noticable is gray. A little dot in the middle of the screen. With the comp off you can tell it's while small still a pretty big sized dust spec. I have tried shaking the comp to compressed air. I think the only solution would be too take the screen off but I couldn't do that confidently. There is no apple store near me and had my comp for over 2 years. I can live with it but is there any solution? How did that dust even get in the screen?