I have a 2011 MBA 13" 4GB RAM, 128 GB SSD, 1.7 GHz Intel Core i5.
For the past few months, the top row of letters, from "Q" to "O", work intermittently or not at all. Four of the five vowels (e, i, o, u) are on the top row, so the buttons get a lot of use and it is infuriating when they give...