We hope you weren't quick to leap on the Surface Pro 2 update that popped up last week; if you were, you may be regretting it for a while. The company has pulled the upgrade following reports of both failed installations and battery problems, including a reduced capacity and incomplete charges. A fixed release is coming "after the holidays," but there's no word of an easy way to roll back. Short of resetting the system or a convenient restore point, you may have to live with a buggy tablet for the next few weeks.