RE: Inspiron 600m - Screen goes black, low light, bad inverter?
Well you where correct. It was the back light. Im using a parts computer for parts and swapped the inverter but the effects where the same. So all is working for now. Its done about 8 hours straight with the screen on and showed no problems.
The backlight is a pain to change. And those screws are very tiny, almost couldn't find a screw driver that would fit.
Anyway thanks for the advice.