Summary: I really enjoy this game, but my computer doesn't. I have Windows Vista and for some reason this program gives my system the heebie-jeebies. It does not like to load. When it does the program hesitates to follow commands. Microsoft is putting out a new Train Simulator. I trust I'll have better luck with that one.
Summary: This would have been a great simulator if it had more time to bake. It is out of the oven too soon and Microsoft's development vendor, Kuju, has taken a number of wrong turns development-wise. A blatant example is that this Microsoft program does not use the standard Microsoft Windows window gadgets from their own operating systems, but rather "faked-in" window gadgets (which do not scale to your display size).
Summary: No, not the locomotives in Train Simulator, it's your computer that will need to be FAST. Our fairly new 2.2 Ghz P4 with Geforce 4 card still stutters in some views. Forget the stated system requirements. If your system is up to the task, the trains are good looking and so is the scenery, but that's all this game is, operating trains. Sounds facinating, and it really is in a way, but it does grow boring fairly soon. Just imagine driving an 18 wheeler for the first time.