A while ago a friend of mine spilled something on my MacBook keyboard, rendering it useless, so I bought a wireless USB keyboard. Everything worked fine for a while, but now I keep getting random input from the Macbook's keyboard. The f9-f12 keys are pushed a lot, as well as P and 0 and other characters. I've been trying to find a way to completely disable the Macbook's keyboard so I can just solely use the wireless one, but I haven't had any luck. Any tips? Also, any advice on eventually replacing the keyboard on the laptop itself? Thanks!