Don't worry Zapata935, we have all done what you did, but you will remember next time, not to shut down your computer too quick.
As a tip to remember...
After Trainz has closed, I usually press three keys at the same time,
CTRL,
ALT and
DELETE, and a box will pop up, look for
TADeamon in the list, wait for that to disappear,
DO NOT force it to close, as this can damage your Trainz installation, and it can lose or corrupt your saved route, it only takes about 30 to 50 seconds to vanish, but once it vanishes, it is then safe to close your computer.
Do this same precedure everytime you have have used Trainz, this can help Trainz run smoother and faster in the future.
Hope the above helps
PS, wait till it comes to a time, when you have Trainz 2010/2012, when you merge your layers together, and you think that you have saved your route, and then you exit Trainz, and then you go... NOOOOOOOOOO, I forgot to save it... lol... I have done that too, a couple of times...
Joe Airtime