Supreme Commander 2 is a real-time strategy (RTS) video game developed by Gas Powered Games and published by Square Enix. It is a sequel to Supreme Commander. The story starts with the newly-elected President's assassination, causing the break up of the coalition formed during the expansion of the first game.
supcom2 worked at 1080p for me on a single monitor, after hooking up eyefinity supcom2 INSISTS on running ONLY at 1024x768 no matter how many times I endit the game.prefs file or select different resolutions in the in game options menu. Even if I try to change to 1080p in the ingame menu supcom2 will say 'you need to restart for changes to take effect' after a restart it will be 1024x768 again. Same effect editing the game.prefs, after a start it's back to 1024x768!
I had no such problems with the demo, that's all I know... Maybe editing Game.prefs using a hex editor (so as not to alter the file size) would do the trick.
Btw this game does NOT support multi-mon as far as I'm concerned; Vert- gameplay is a no-go in my book. Dual-screen (game+map) is wayyy better ! ;)