Clear Cut scenario completion problem.....

On the Clear Cut scenario when it comes time to move the GP38, after starting it, it says you have to get the brake pressure above 79 psi by throttling up. I have done so and the pressure looks to be over 79 psi, but it won't acknowledge I have accomplished the task. It just sits there waiting for me to complete the task. So I'm stuck with a scenario I can't complete.
Has anybody ever had any problems completing this particular task? I'm very frustrated and any help would be nice.
Thanks.
Has anybody ever had any problems completing this particular task? I'm very frustrated and any help would be nice.
