Hi There, I have a mid 2009 Macbook Air 2.13ghz variant and the logic board has broken. I have been looking everywhere on Ebay and other places and whilst there are plenty of mid 2009 Macbook Air 1.8ghz boards around the 2.13 ones are rarer than rocking horse ******. Does anyone know if you can put a mid 2009 1.8 board in place of a 2.13? many thanks in advance. Neil.