Game.exe strange crash

[Zilarrezko]

I made a small minuscule game and it runs fine. I then made it into a .exe and send it to one of my friends and got it to open just fine, as did I. When I sent it to my brother he runs the .exe and it freezes the filebrowser, the game window doesn't pop up, and it runs the game as far as the task manager "processes" tab is concerned. I know he has 2 SLIed graphics cards and he has an Intel processor. That's pretty much the only difference between my friends computer and my brothers.

Very odd occurrence.

edit: forgot to mention, my brother also has 3 monitors as well.