Hey everyone, I have a Macbook 2,1, which I recently bought on eBay. Seemingly out of nowhere some of the keys on the built-in keyboard stopped working. The affected keys are: volume up, down, mute, power, all the brightness keys, and the power button. I've tried rebooting and repairing permissions. Also, when I go to system prefrences under sound and keyboard it freezes up. Any suggestions? Thanks.