Okay, so initially my problem was that my Macbook Air wouldn't turn on. After reading many forums, the only solution that worked at all was resetting the PRAM. When I reset the PRAM, the computer turns on, but it won't stay on. Also, the battery has an X over it. So, every time I have to reset the PRAM again in order to keep it on for just a short amount of time. Not even thirty minutes. Again, it is a 2008 model of the Macbook Air.