On my computer, when I use Trainz or Content Manager for a prolonged period of time, the computer will go to the Blue Screen of death and it comes up with error saying it was nv_disp, I have got the most recent updates for everything on my computer, I have done stress test on mt processor and video card and it has the best performance that a computer can have, I don't know what it is, if there is anyone out there that can please help, help me please this is really hard for me as I enjoy playing trainz