Apple owners have been complaining (my, they're complaining) about random shutdowns of the new Intel-based MacBooks.
Now, a German article (translated and summarised here) suggests that it's because a cable to the heat sensor comes into contact with the processor's heat sink, melting the insulation and causing a short circuit - leading to a shutdown. Let the heat sink cool, and it doesn't touch the cable, and you can boot up. Get too hot and...
The implication is that things are so (a) tight and (b) hot inside the MacBook that even slight waywardness is going to cause a problem. However, judging by the comments to the posting (ignore the one claiming to come from "Apple insider" btw - so obviously fake) the machines show this random turnoff behaviour even when starting from cold.
The mystery remains; but one can be sure that by the end of the day a legion of MacBook owners will have taken the casings off to gaze at their heatsinks and any sensor cables within. We don't recommend it as you might void your guarantee. Let someone else do it - the photos will be on Flickr in a flash.
