There's a VMS (Voice Message System) Inhibit switch on the right console, just right of your seat and below the Zeroize switch (i.e., the switch with the red guard on it). You'll still get "pull-up" Break-X cues on your HUD, but Betty will be silent. No need to fiddle with ALOW and MSL FLOOR settings.
Last edited by NoCarrier; 02/26/12 12:55 PM.