Repeating Keys - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - On OSX, holding down a key sometimes makes it a repeating key, and sometimes doesn't. The default behavior seems to vary in different releases. If you want this repeating-key behavior, the solution is a rather counter-intuitive shell command: write -g ApplePressAndHoldEnabled -bool NO That's right, you set it to "NO" to enable the behavior. ;-) I also ran across this further explanation at forums.apple.com: you can enable in specific apps using defaults write app plist ApplePressAndHoldEnabled -bool true where app plist is something like com.apple.textedit. I suspect from the "NO" and "true" spellings that capitalization doesn't matter, and both "yes" and "false" should also work, but I haven't tested this. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 0....+....1....+....2....+....3....+....4....+....5....+....6....+....7