On the n9 that i own, i didnt notice the black spots even in those conditions which you describe. the only thing that i do notice is the reddish/purple tint/bleeding on the left side of the screen ,as Benny has stated, is really visible and frustrating when using it in darker environments. it is barely visible in lighter conditions. Somehow, I think that this can be tweaked a bit on the software side with the color pallettes so that it isnt that noticeable, contrary to what the limitations of the amoled display. At this point anything that can be done to make it fix it just a bit would be great welcome to many n9 users, because this device is not cheap!