Chalk one up for an at least temporary resurgence in PC gaming. Blizzard can vouch that Diablo III has set a new record for the fastest-selling PC game to date: at 3.5 million copies trading hands through Battle.net downloads or retailers in the first 24 hours, and 6.3 million after a week, that's a whole lot of people battling the biggest of Prime Evils in a very short time. Naturally, a Blizzard-obsessed South Korea is accounting for even more activity, where over 39 percent of play at local gaming houses can be pinned on the action RPG, and the tally doesn't even include the 1.2 million bonus copies comin