content: use scripting additions
  tell application "System Events"
  	
  	tell process "System Preferences" to activate
  	
  	tell application "System Preferences"
  		set current pane to pane "com.apple.preference.general"
  	end tell
  	
  	tell process "System Preferences"
  		
  		set failSafe to 0
  		repeat until checkbox 5 of window 1 exists
  			delay 0.1
  			set failSafe to failSafe + 1
  			if failSafe = 100 then error "Script timeout"
  		end repeat
  		
  		set thecheckbox to checkbox 5 of window 1
  		set theValue to value of thecheckbox
  		set failSafe to 0
  		
  		repeat until theValue is not value of thecheckbox ¬
  			or failSafe is 10
  			click thecheckbox
  			set failSafe to failSafe + 1
  			delay 0.1
  		end repeat
  		
  	end tell
  	
  	tell application "System Preferences" to quit
  end tell
  