Well, the title says it all. My main monitor is the one that my computer recognizes as "monitor 3". In the graphical settings I can choose between 1 and 2. Since 1 is disables it auto changes to #2. When i select #2, wait for it, goes fullscreen on #2. But #3 is my main monitor and i cant run it fullscreen on this monitor. I can run it in windowed mode, but thats not fullscreen.
Really love the game! Keep up the great work guys! <3 <3
EDIT: Added version number in title.
Its on the newest version that steam downloaded for me (0.12.24)