Pete,
Thank you for your help. I am going to try your suggestion. I will report back if this works. I seem to be having all kinds of problems at the moment. Not only will my passenger trains build, all my freight trains will build. however when I print the manifests, there are no locos or any cars showing despite the trains building and showing that they are "okay".
I am in over my head right now and a friend who is much more familiar with Operations Pro is trying to help me too.
I will keep on trying and hopefully either my friend or I will somehow figure this out,
Regards,
Keith