Slowly, slowly, my full-size wired Apple aluminum keyboard is dying after key after key becomes unresponsive. Spoke to Apple to get it repaired. Apparently, they said, it would cost more to repair than to buy a new one. As a stunningly engineered piece of hardware, it's a shame that it may end up in a landfill... unless someone here knows how to bring those keys back to life. (I am typing this on another keyboard, a rather ancient bluetooth Apple keyboard.)