With AviOS10.3, acknowledging CAS messages on IFD100 do not cause the same CAS message to clear on the panel-mounted IFD. Prior to AviOS 10.3, clearing the CAS on IFD100 would cause the same message to clear on the IFD, and vice versa. ![][1] This is not a bug or a glitch, but rather a circumstance of the new secu...