Looking back to previous posts shows much less people complaining about hardware issues, as expected. Therefore, if someone bought (or is going to buy) a Macbook, what he/she should look for after starting OSX for the first time ? Rev A (CD) : a. Noise b. Flickering screen c. Excess of heat d. Discoloration after some weeks e. cracked hinges Rev. B (C2D) : a. Flickering screen ? Is there anything else ? I have seen some people going for the refurbs and it occurred to me that these are things that they should be aware of.