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Thankfully the Aluminium power books don’t have the problem. The results are here and it appears that every iBook model can develop the blank display problem. I conducted a survey (thanks to over 300 readers who participated!) to see which model g4 ibook had the problem.
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This article describes the problem and how to repair it. You might think it is a problem with the display but it’s actually a problem with one of the chips on the main motherboard. It can appear after a year or more in some machines and the symptom is that after being on for a few minutes, the screen goes black (it looks blank, but the light has gone off), the fan turns on, and the computer freezes.
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There is a problem with the logic board in the Macintosh G4 ibooks.
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