I have a dual monitor setup. The game splash screen starts on the correct monitor. The resolution is set to what my main monitor is. But, the game opens on the second monitor. There is no way in the settings to change what monitor it is displayed on. The config file is set to monitor 0 which I would assume is correct for the main display.
I can make the game in windowed mode and drag it over, but I have to do that each time the game is opened. It does not remember the last position.