Apple releases Mac OS X Lion 10.7.1 update

Apple has released the first OS X Lion update to address problems with audio and video, data transfer and Wi-Fi settings, although there are no security fixes.

Mac OS X 10.7.1 is recommended for all Mac users to improve the stability and compatibility of their machines.

The update includes a fix for a problem affecting the responsiveness of video playback in Safari, as well as a bug causing audio to stop working when using HDMI or optical audio out.

Apple also revealed that the update addresses "an issue that prevents transfer of your data, settings and compatible applications to a new Mac running OS X Lion", and improves the reliability of Wi-Fi connections.

Finally, the update "resolves an issue in which an admin user account could be missing after upgrading to OS X Lion", Apple said.

Customers are advised to back up via Time Machine before installing the update by choosing Software Update from the Apple menu.

Mac OS X Lion has certainly been popular with Apple customers, and a record breaking one million copies were sold on its first day of release in July.

The operating system received an impressive four star review from V3, with the warning that it no longer supports PowerPC software, has high system requirements and multi-touch gestures that rely on trackpad use.