My screen flickers permanently.
My screen flickers regardless of resolution setting. after opening from the closed position it sometimes works for some tens of seconds but the the flickering starts and is unbearable. I am currently using an external screen with and RGA cable which works fine. it is is ugly and defeats the purpose of a sleek compact computer.
This sounds like your CCFL LED tubes are going out. Time for a LCD replacement. Here's how: Installing PowerBook G4 Aluminum 15" 1-1.5 GHz LCD
Here's some options on the part: G4 Aluminum 15" LCD Panel