defaults: make com.apple.sound.uiaudio.enabled work again
defaults: make com.apple.sound.uiaudio.enabled work again

According to prefnerd, it's in the NSGlobalDomain now.

wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent,wincent/wincent