i've had my top case replaced three times already and it's broke again. it only takes a day or two to get it replaced at my local authorised repair centre, but is it worth ringing apple and trying to get the machine replaced? i mean, there's no point in replacing the machine with the same model because it'll just happen again, but i can't imagine apple giving out one of the new machines though. for reference its a 2.2GHz white macbook bought in november 2007 and the top case was replaced the first time around jan/feb 2008, and then twice in 2010. obviously the applecare runs out in november of this year so want to get this sorted out asap. thank in advance for any replies.