I have a Toshiba Satellite A135-S4666. In order to change the brightness, you have to push the Fn button, and F6 or F7, depending how you want it. The only problem, when i push the function button, and F6 or F7, or any of the other functions other than F9 (Turns on/off Touch pad), nothing happens. I guess I turned it off by accident when i was changing some settings or when I upgraded from Vista Basic to Vista Premuim, but I can't figure out how to fix this. Please help..
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