Just bought this on Steam, looking forward to playing. The game works fine on my main display (1680x1050) and launches in full-screen mode, but when I try to play from my TV (1920x1080) launched from Steam Big Picture, the game won't run in anything but windowed in a very small 640x480.
Is there a command line switch to force a resolution or full screen? Something I've missing? I saw the F1 menu, nothing regarding resolution or full screen there.