With regard to the Class 170 "Turbostar" for OpenBVE.

I have been successful in turning off the 'driver's vigilance alarm' for all of my trains apart from the class 170. I have set vigilance to 0 in the UKSpt plugin. However, after 60secs the vigilance device still sounds. I cannot see anything in the Train.Dat file that would cause this. Can anyone advise please. Many thanks.