Under Hardware, click Keyboard > Keyboard and then check Use all F1, F2, etc. On the Apple menu, go to System Preferences. To use them, you must change the settings for your function keys. Some function key shortcuts conflict with default key assignments in Mac OS X version 10.3 or later. Keyboard shortcuts for laptop computers might also differ. Keys on other keyboard layouts might not correspond to the keys on a U.S. Keyboard shortcuts listed in this topic refer to the U.S.
