Ok second try at writing this s I just deleted the last one instead of posting it 
UPDATE:
Im now up and running. There was 2 problems I had. First off is the issue of naming the materials correctly in 3dmax. The exporter requires it to be in a particular format - for in fo on this see post #38 above by clam1952. Thanks for that Clam. The second problem was more specifically to do with a problem with my pc.
I have dual monitors on my pc - one of which is a touch-screen. It stopped functioning correctly and I originally put this down to my young grandson fiddling with things (sorry Charlie). However, I decided as I could not resolve the issue I would reformat and start from scratch. I mention in a post elsewhere that my son decided to lend a hand with this and I ended up redoing it anyway as the screen was still not working properly. However i discovered that the problem lay with an update from microsoft. I have narrowed it down to one of 5 updates. So having re-formated yet again and turning off automatic updates, I am working on isolating that problem.
In the mean time I had the original mesh examined by someone who said that they were still having issues with the mesh. So I created a simple box and exported that. It worked. Ive now built a new mesh along the lines of the old one and that also now works. So I can only presume that it is some how linked to the fault on my pc.
So now I am able to confirm that 3dmax 2012 64bit can indeed make suitable mesh exports for Trainz. Now all I have to do is change the basic material colours Ive tested it with to more suitable texture maps which are to the power of 2. (Another learning curve). Anyone have any suggestions on texture mapping (and the power of 2) that are simple to understand?
Antony
UPDATE:
Im now up and running. There was 2 problems I had. First off is the issue of naming the materials correctly in 3dmax. The exporter requires it to be in a particular format - for in fo on this see post #38 above by clam1952. Thanks for that Clam. The second problem was more specifically to do with a problem with my pc.
I have dual monitors on my pc - one of which is a touch-screen. It stopped functioning correctly and I originally put this down to my young grandson fiddling with things (sorry Charlie). However, I decided as I could not resolve the issue I would reformat and start from scratch. I mention in a post elsewhere that my son decided to lend a hand with this and I ended up redoing it anyway as the screen was still not working properly. However i discovered that the problem lay with an update from microsoft. I have narrowed it down to one of 5 updates. So having re-formated yet again and turning off automatic updates, I am working on isolating that problem.
In the mean time I had the original mesh examined by someone who said that they were still having issues with the mesh. So I created a simple box and exported that. It worked. Ive now built a new mesh along the lines of the old one and that also now works. So I can only presume that it is some how linked to the fault on my pc.
So now I am able to confirm that 3dmax 2012 64bit can indeed make suitable mesh exports for Trainz. Now all I have to do is change the basic material colours Ive tested it with to more suitable texture maps which are to the power of 2. (Another learning curve). Anyone have any suggestions on texture mapping (and the power of 2) that are simple to understand?
Antony