KEEP CALM AND TURN IT OFF AND ON AGAIN
Uggh. I don't know what I'm doing with this computer... One of the bad things about not having a smart, computer savvy husband is you have to figure this out yourself. From what I googled I think it may be the logic board?! Is that possible? Would it work some times and go off other times? I need a mac genius STAT. And a giant back up drive.