Game crashes few seconds into new game.

[plutomaniac]

Fow the Windowed issue:

1) Make sure you are running on 32-bit color mode (I know silly but it has happened before with someone who had it accidentally at 16-bit and caused the same issue).

2) Make sure your DPI is set to 100% (default).

I tested the game on my laptop and it wasn't crashing but it was suffering from the infamous stuttering issues as well as vSync not working at all with the 540M. Anyway, try the above (especially the DPI settings) and let me know if you can run it in fullscreen mode.