Hello fellow MR members! My MBP listed in my signature is having keyboard drop-outs fairly regularly even after a reinstall of OS X so my best guess is it needs replaced. Anyways, back in the fall I had a friend of mine (who is an Apple certified tech) install a 500GB 7200rpm drive in my system. Now, if I send my system to Apple, will they complain that the drive is in there and not replace the keyboard/topcase if they see that a new non-apple marked hdd has been installed? Would it be best too see if this friend will take out the 500gb drive and re-install the original 200gb drive? Thanks!