I have my wonderful MacBook on my desk. I also, often, have one or two cats on my desk -- they love to see what "mom's" doing, and love to lay down next to the computer/keyboard, etc. No, I'm not having any problems with the MB now, but wondering where/how much cat hair is getting into my machine, and what I can do to either prevent it (no, I'm not getting rid of the cats!) or remove it. I have no way of knowing if there is hair in it or not, but with the amount of cat hair in the house, seems there would have to be some. The MB is under AppleCare, so I don't want to crack it open. Wondering if taking it periodically to a local authorized reseller/repair to have them clean it out would void warranty? How often would you think this should be done? What can I do at home to clean it out? Would it hurt to take the dustbuster to the openings where the lid is hinged (I guess that is where the fan is)? Or??? And I repeat -- I am not getting rid of the cats! Nor am I going to make them stay off the desk -- they are spoiled and I intend to keep them that way! Thanks in advance for any insight!