Download and apply OS X Mountain Lion v10.8.2 Supplemental Update 2.0 to address these issues. You can manually install the update, or you can update via the Mac App Store with these steps:
- From the Apple () menu, choose Software Update to access the Mac App Store.
- Click the Updates tab at the top-right corner of the Mac App Store window and then install the update.
Make sure your system is running the latest OS X software. For more information, see MacBook Pro (Retina, 13-inch, Late 2012), Mac mini (Late 2012), iMac (21.5-inch, Late 2012): Recommended OS X Software Updates and MacBook Pro (15-inch, 13-inch, and Retina, Mid 2012), MacBook Air (11-inch and 13-inch, Mid 2012): Recommended OS X Software Updates.