Apple today issued an update for the Mid–2013 MacBook Air to fix an issue that caused some users to experience severe flickering when using Adobe Photoshop.This update is recommended for MacBook Air (mid 2013) models. This update fixes an issue that in rare instances may cause an intermittent loss in wireless connectivity, an issue with Adobe Photoshop which may cause occasional screen flickering, and an issue which may cause audio volume to fluctuate during video playback.Apple has also released an update for its AirPort Utility for Mac, which resolves an issue that caused AirPort base stations not to appear in AirPort utility. The updates can be downloaded via their respective softwar