Four of the CNET Australia editorial team have bought a new MacBook since its release and every one of them has had to -- or will shortly -- spend some time in the Sydney AppleCentre. Are their experiences of the MacBook representative or have they just been extremely unlucky? This problem seems to be spreading and now there is even a website (http://www.macbookrandomshutdown.com)  that has been put up to hig [...]