Hello all. For some months ago i had some "burn/black" marks on my iMac 27" Screen. I got it repaired and everything have worked fine. For some days ago i saw the burned/black marks once again. But have not called them as it is not a lot. Today when i wake up to turn on the iMac, it wont start. I have tried in other sticks. I have tried to pull the stick out and wait some time. I have tried to see if there was power for other devices in the socket, and there is. Any idea what i can do? I cant contact support today, as it is sunday... Thanks. From Kehaan.