Users having to re-authenticate StarCraft II: Wings of Liberty every time they attempt to play Blizzard's RTS sequel is due to a bug, rather than a policy change, reports GamePro. "We’re aware there’s a bug in the authentication system, as far as the system being able to know that you’ve logged into the system for 30 days," a Blizzard representative tells them. "We’re trying to address this problem in an upcoming patch." The rep also responded to a post on the Battle.net forums saying the re-authentication was intentional, saying: "There’s been a miscommunication with the [customer-service] guys…there’s no change with the 30-day authentication policy." Thanks Big Download.