Keyboard & trackpad not working. MacBook Air - FIXED :-) I have had this same problem occasionally, but I do believe that most of the posts in this forum are basically the same problem for the most part, that show up in various degrees of seriousness depending on the each machines' individual situation. Which is why different fixes work for different peoples systems. I would like to say thank you to all the contributors to this forum, because using most of the tips has helped me to solve my systems problem. (At least for now) ;-) Sequence of events that happened in the situation with my machine: Machine is the first version of MacBook Air from 2008. (1) Processor 1.6 GHz Intel Core 2 Duo (2) Software Mac OS X Lion 10.7.5 (11G63) (3) Model Identifier: MacBookAir1,1 Had no problems at all until the original Factory installed apple battery decided to expand and swell the housing of the keyboard and trackpad. (But the machine is 8 years old. Not sure this is an excuse though.) (1) On occasion, where the said...