Hello,
The issue is back(windows 8.1, on a laptop), and it's rather weird, he played a game today and after this game he couldn't play anymore since the game will minimize itself(even if you try to maximize it, it will minimize).
He rebooted, and it worked for one game and then the issue was back... We tried to add the option "-windowed", it fixed the issue for 1 day but not anymore. Even after reboot, re installation of the game/faf... And the bug is here by launching supreme commander forged alliance alone or by using faf to play a game.
Thanks for help =(
PS :
forever.log :
http://pastebin.com/2AXkGZSm
game.log
http://pastebin.com/FYSxFiG9