Some time ago (a year?) I played some water on my macbook keyboard. The only things I couldn't quite fix were the buttons (p) and (-). They still indicate their character, but they are stuck together. For example, when I turn on the (p) key, it appears as (p-) with a hyphen. Similarly for the (-) key. There is a simple solution with the delete button, but I would like to see if anyone else has come across this and been able to fix it before ordering a new external keyboard.