I have a Rev. A PB 12" and love the keyboard. Unfortunately, i don't have AppleCare, and four of my keys have seperated themselves from their plungers. I can still use all the keys, it's just a little harder. I was wondering where I could get replacements, and if anybody else had this problem. I accidentally melted two (halogen bulbs are dangerous!) and two have lost their desire to stay on my PowerBook. Any help would be great.