I have the same prob after spilling juice on the keys. I imediatly turned the comp. off and turned it upside down. After opening it up and cleaned out the keys. Yes, I had to remove about 50 micro screws to get to the keys.My Mac pro 13" works, every key on the kepad works...but the "A S D F G H J K L l" keys. I reopened it and check the ribbon but all looks fine. Are the any fix for this. BTW I did "Restore Default" on the Keyboard Shortcuts. Thanks