I've got an old school PB G4 Alu and after the machine sleeps, the ambient light sensor seems to just shut off or something because everything works fine from a startup, backlit keyboard and screen dim. But after the machine has been put to sleep and woken, the sensor just stops working, the backlit keyboard is still functional using a program called lab tick but is not adjustable using the F8-10 keys. I would rather keep using the light sensor, so far the only way to fix it is a restart. And its kinda annoying if you know what I mean. Anyone got any ideas?