If you take a look at your laptop's keyboard, you'll notice that the top row keys have icons printed above, with "F" and a number, like F1, F2, and so on, below each one. These are known as function ...

I just bought a new aluminum Apple keyboard, but most of the function keys don't work. Only F9-12 (expose and dashboard) work. What gives? I'd like the keys to do what it says on them, but failing ...