I'm pretty sure that the answer to this question is somewhere, but this is really annoying me. Today, I bought a new aluminium wired (not wireless if it makes a difference somehow) Apple keyboard to replace my old one which wasn't working a lot of the time properly. I moved Exposé to F3, F4, F5, and Dashboard to F6, but I still can't use the volume controls from F10-F12. Why isn't it working?