10.5.5 F1-F4 keys on MacBook Pro

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Dec 20, 2008
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I don't know if this a hardware or software question, but my F1-F4 keys seem to do nothing. When I hit one of them, I get that sound from the computer that I think means I'm trying the impossible. I've tried to find in help areas and manuals what they do but can't seem to find anything. Can anyone tell me what these keys do, and if I don't like what they do, can they be reprogrammed to do something (else)?

In my old Mac, OS 9.?, which I haven't used for a few years, I could use 3 of those keys to cut, copy, and paste, which I'd really like to do with my F-keys here.
 

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