My MacBook Pro screen went black at the login screen
So recently my 2007 MacBook Pro has been turning black upon booting up. It hasn't been an issue and after a while I've always been able to get it going but now it won't respond at all. Upon starting up I see the apple and the spinning wheel and then as soon as it gets to the login to an account page the screen shuts off instantly. If I press the power button and shine a flashlight at my screen I can see the screen very very dimly. After 5 or so seconds since I had pressed the power button the screen goes completely off again. Another note is that when I can very dimly see the screen the laptop is functional just extremely slow glitchy. Please help.
MacBook Pro, Mac OS X (10.7.5)