You may think this was a stupid idea, but since I work overseas (I have an apartment in New york), I visited New york, the day before I went to the airport to go back to my work, I bought an iMac. It was one of the most exahusting airport trips, carrying the huge box everywhere. I came home setted it up, at start I noticed this dark circles or oval shape on the top left corner. I thought it was going to go away or something, but it was something small. 2011 I saw it on top right corner, but I've hesitated (I only had 2 months left of complimentary support) again and just left it. It's now 2012, if there is a white color on the thing the dark spot, its dreadful to look at. Unfoturantley as stupid as I am, I got no applecare. Now I am stuck of this partly-defective screen. Is there a way to fix this? it is starting to disturb my working and web browsing. And does anybody know the cause? I heard of away to get one of those gps suction cups so I'm not sure thats safe for a screen. *I tried to take the best picture but the screen refuses to let me take a good one.