I had exactly the same problem as that reported by Tony. Apple said the Macbook Pro has water damage... but I am 100% certain that no water came in contact with this machine (which was always sitting on my desk, and never taken anywhere else). Very disappointing that a company like Apple tries to fob off users with tactics like this. After this problem, I had another issue with a Macbook Air failing suddenly. Of course both the Macbook Pro and the Macbook Air have no user-replaceable parts... so I ended up switching my company from Macs to Windows notebooks (with replaceable batteries, memory and disk). Why on earth are people still buying machines that are not repairable?