Unreliability is one of the consequences of Apple's constant redesign and application of new unproven manufacturing processes and materials. For example, they

Unreliability is one of the consequences of Apple's constant redesign and application of new unproven manufacturing processes and materials. For example, they used fragile metal for MacBook Air hinges -- I have screen replaced two times due to this (the second replacement had hinges made of a different material) http://support.apple.com/kb/ts2948 http://support.apple.com/kb/ts2948 Now I have a new white MacBook and its newly designed beautiful rubber bottom began peeling off (and I know others with the same problem).