I have a 4 year old Black Macbook, and have had two screen issues within the last year. The first was I had 10+ dead pixels, and got my screen replaced. Since it was replaced I have found more dead pixels and just recently have found out I either have a bad inverter cable or bad LCD back light (my screen is completely dark, but I can faintly see my desktop and login screen, and everything looks fine when hooked up to a different monitor). With all of my issues seeming to be screen related, I was wondering if it was just random luck or possibly something else going on. I treat my computer very well, have a hard case for it and have never dropped it.