Powerbook G4 screen went out

I've had my Powerbook for a few years now and just recently the screen started acting up. For example, if i stand up with it in my hand and the screen moves just a bit, the screen will go 99% blank (I can still vaguely see things when in bright light). I found that if i move the screen back and forth, it will come to its senses. But, today it went out and, even though I could still see my desktop, refused to turn back on. Is there any kind of solution to fixing this or am I up the creek?