
m The keyboard is not connected properly. Turn off the computer using the power switch, then check that the keyboard cable is connected properly at both ends. If you have a keyboard with an ADB port (marked with the . icon) on each end, turn off the Macintosh using the power switch and plug the keyboard cable into the other ADB port on the keyboard. (You may have to unplug the mouse to do this.) Then restart the computer. m The keyboard is damaged. If you have access to another keyboard, try usi