Try resetting the pmu before you abandon hope. Unplug the book, remove the battery and press the little recessed button next to the power switch. Try it a few times, also try holding that little button down for like 30 seconds. Good luck.
PB G4 15" 1.2ghz - Pismo G3 400 mhz - iBook G3 500 "Jukebox"
"SawSmurf" G4 500 - Quicksilver G4 Dual 1ghz modding...