Cupertino firm Apple released an update for the Mac Leopard operating system and recommends you upgrade when you can.
Version Mac OS X 10.5.8, said the firm, fixes compatibility and reliability problems when joining Airport networks, fixes a problem that causes some monitor resolutions to disappear from Displays System Preferences, and problems with Bluetooth.
Apple also said the update includes version 4.0.2 of the Safari browser, which will auto-upgrade from previous versions.
Other improvements and fixes include a problem that prevents importing of large photo and movie files from digital cameras, a fix for a problem that causes extended startup times, and better compatibility with some external USB drives.
The upgrade also includes the latest set of security fixes, said Apple.