My early 2008 Macbook (White) screen has started to randomly go black when I am doing something. It is doing it more and more. After researching, I replaced the inverter board and the inverter cable. The problem persists.

When it goes black, I can use the F1 and F2 keys but have to keep it on a very low setting—and sometimes it won't work for long.

When it goes black, if I were to shine a light on the screen, I can see everything on the desktop!

HELPPPPP MEEEEE!!! Could it be something, besides a screen replacement that I can try myself? (A screen replacement will cost an arm and a leg.) I'm really aggravated by the whole thing since the timing is terrible.

The last 4 digits of my serial number are 70PO.