Some gamers have been forced to re-authenticate every time they try to play StarCraft II off-line. Blizzard says this is due to a bug rather than a heavy-handed copy protection policy.

"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 rep told GamePro. "We’re trying to address this problem in an upcoming patch."

No word on when exactly the patch would arrive. Blizzard says it'll be out "soon," though.