My Press and hold accents have been disabled in Yosemite I just got Yosemite and now my Press and hold accent capability seems to have disappeared with my old software.

I tried using /System/Library/Input Methods/PressAndHold.app in Terminal to find Press And Hold but it comes up saying


  -bash: System/Library/Input: No such file or directory


and I am not even able to use defaults write -g ApplePressAndHoldEnabled -bool true

to enable it. Please help!
I just realised you need to restart the device for it to take effect...