PNWR1854 wrote:I will go to quick drive to make a custom consist. Then it will begin to load. When it gets to around 57 percent, the game freezes and then when I go to look, there is a dump file on my desktop

Some time ago I published this recipe to get non-crash custom consists:
http://railworksamerica.com/forum/viewtopic.php?f=8&t=16967&p=194046&hilit=How+to+save+a+consist+for+multiple+scenarios#p194178This works all the time, unless:
1) You have a corrupt custom consists file (...Content\ConsistTemplates.bin)
2) You have corrupt rolling stock (since the editor loads all train assets in your Railworks)
It takes time to load the locos and cars, depending on the amount you have in your collection. So be patient.
Once you load all stock you can do as many consists as you wish (and faster). The complete stock is now in your cache.
I have made +100 cars consists this way.
The custom consists may be called and used in the Scenario Build editor. You only need to enable all rolling stock in that consist by using the little cube.