If you are still having problems, press and hold the Command-Option-O-F keys during startup, and reset the computer's open firmware settings by typing reset-nvram, press return and then reset-all, and press return to continue the boot process.Įxtra icons in System Preferences Another reader e-mail notes extra appearances of some buttons in Mac OS X's System Preferences usually under the category 'Other.' This problem is usually resolved by deleting the file in Username/Library/Caches. Siri Icon Mac Os Sierra Vmware Player For Mac Os X Free Download Mac App For Sorting Files Calendar Invitation For Mac Sierra Sream Games For Mac Adobe Photoshop Cs2 Update Free Download For Mac Amazon Music Player For Osx How To Turn Off Safe Search For Google On Mac Word 2011 For Mac Compatibility Vlc Media Player For Mac Os X 10.7.3 Any. Try holding down the option key at startup to select the boot volume. If this icon appears, it means that the system is attempting to NetBoot (startup from a remote volume), is failing doing so, and for some reason is not automatically moving to your valid Mac OS X installation. 'Flashing globe' at Mac OS X startup and its meaning We received an e-mail recently from a reader who was presented with a 'flashing globe' at startup, disallowing the boot procedure to continue.