MacBook doesn't boot, only black screen and repeats dvd drive noise
Since yesterday, my macbook doesn't boot any more. I haven't done anything with it, just opened it up and the problem was there.
When I press the power button, the screen stays black and it keeps repeating the dvd player noise when it boots (which, you normally only hear once). Then, I can only turn it off again by holding down the power button.
I tried holding down C, Shift and cmd+option+P+R to reset PRAM, but nothing helps.