So there was a little spill the other day. I mopped up quickly, but now the right arrow key isn't working. It seems to twitch by itself occasionally - while trying to watch DVDs, for example, I'll suddenly skip forward in chapters to the end. Is there any way to disable the key through Terminal or something? If not, is there a way to tell the computer to ignore keyboard input if an external keyboard is attached, similar to how you can tell it to ignore trackpad input when a mouse is attached?