My MacBook won't turn on
I was working on my laptop yesterday and it just all of a sudden shut down and now I cant bring it back up. The battery power was at 80% or so according to the icon, but when I pushed in the battery button (after it shut off) to see how much power is there none of the little green lights come on. I have had my laptop for 1.5 yrs, and in reading about the battery life I understand that this is about the time that one needs to be replaced. No big deal, I have no problem with that. My problem is that most of the discussions indicate that even with a dead battery the MacBook should still operate when it is plugged in. This is not working either. The magsafe shows a green light on the power cord, which I assume indicates that the cord is working, but my laptop still wont come up. Any suggestions other than taking it in to the Genius Bar?
MacBook