Boston and Maine route problem

I'm having a problem with the new Boston and Maine route. Every time I drive to the milk factory from the mainline to couple to the cars I installed there my game freezes up and I have to control alt Delete to shut down RW.
I have tried several pieces of rolling stock all with the dame results. Has anyone else had any problems?
Thanks,
Bob
I have tried several pieces of rolling stock all with the dame results. Has anyone else had any problems?
Thanks,
Bob