Yep, it was working about 1.5 months ago. I unplugged it, put it in the closet. It was working when I put it away. I took it back out a few days ago and now when I plug it in the screen just gives me "System is booting...." with the dots moving across.
I never thought of trying a different power adapter since it does turn on, just doesn't get past that "System is booting...." part so I can check around and see if I can find another one. If I do find a voltage meter, what would I be looking for in terms of seeing if that is the cause?