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Q: (OSX 10.5.8, PowerPC 1.25 GHz) Recently, the keyboard lighting stopped working and the preferences option has disappeared. W ... (OSX 10.5.8, PowerPC 1.25 GHz) Recently, the keyboard lighting stopped working and the preferences option has disappeared. What happened? more
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Jun 14, 2011 5:12 AM in response to michaelfrompetalumaby BGreg,Reset the Power Management Unit (PMU): http://support.apple.com/kb/HT1431#faq10 . If that doesn't do it, reset PRAM: http://support.apple.com/kb/HT1379