10.3.4 iBook backlight problem?
Installed 10.3.4 update last night. Around 1, my 600 MHz iBook and I went to sleep, but this morning only I was able to awake. Turns out it was a backlight problem. Could see image on screen and on TV, but couldn't turn backlight on. Rebooted into OS 9.2, which started backlight, until Finder fully loaded, when it turned off again. Put it to sleep and then awakened and backlight turned on and has so far stayed on. Not certain it's a 10.3.4 problem, but it seems to be the most likely proposition.