My 2.2GHz MacBook (3,1) has had an issue for some time now. At first the backlight would flicker as you moved the display from closed to open. The backlight stayed lit through most of the travel. It's gotten progressively worse lately where it will only stay lit at certain angles, and is otherwise black (you can still see the display in sunlight though). Right now it'll only stay lit if I open it very slowly and stop once it lights up. As I don't have a ton on money to spend, I don't want to just throw parts at it. What could be the issue? Since when it lights up it lights up full brightness and stays lit, I don't think it's an inverter issue. Could it be the inverter board cable? Any advice would be greatly appreciated. I just need it working properly.