Hi All, Not sure if anyone else has experienced the same problem but my b,g,t and 5 keys as well as my underscore and bracket keys have stopped working again. I havent spilt anything on it as far as im aware. I took my macbook into apple for a repair about a month ago and they replaced the keyboard but a month later the same thing has happened again. I wonder if i take it back in they'll just replace the keyboard again or delve deeper. I havent got a clue what the problem is... anyone else had similar problems, if yes could you shed some light on the subject.