You have been visited by the traveling WSOD gnome. There was only one 770 manufactured with that manufacturing flaw and all the posts you see on WSOD are from people whom the gnome visited.

This is rare occurrence but as the good ones get kept, and new ones are no longer forthcoming you stand a very high chance of getting the gnome nowadays.

I was visited by him once before i got a real one so its good to know hes still making the rounds.

His functional counterparts are very fun little devices... i'm sorry you didnt enjoy his little prank... i personally know the dissapointment :S