Software updates can be a bit of a mixed bag -- just ask anyone who's ever been on the other side of a botched firmware install. While many users react with itchy trigger fingers to download the goods, the more prudent (read: hardened) prefer to hold off in the event potentially crippling bugs creep on out. So, it comes as no great surprise that Apple's recently issued Thunderbolt update version 1.2 -- intended to add support for a Gigabit Ethernet Adapter -- is subjecting a p
