keyboard doesn't work
since some months, the third row (so from 'Q'..'E'..'U'...'O') of my keyboard doesn't work properly.
First the problem occured only in the first minutes after starting the macbook.
The key only react on (strong) pressure... after some time the work normal. The other rows of the keyboard are not affected. Now its getting more serious and sometimes i can't write nearly anything...
Any help?
MacBook Air (13-INCH, MID 2011), OS X Mountain Lion