What are some things that can be done to optimize frame rates for Trainz12? I have a fairly substandard system for gaming, but right now, it seems to be running o.k. I just want to squeeze everything out of this computer that I can. I have only and NVidia GE Force 8500 with newest drivers. I also changed the windows Vista graphics to bare bones for the purpose of better performance. What else can I do to get just a few more fps in Trainz?