Unable to play Dirt3 at fullscreen

[monkey]

I recently purchased Dirt3 and it ran fine on my system. Recently I upgraded the game to version 1.2 and ever-since that the game is playing in window mode. I searched all the options to bring the game back to fullscreen but couldn't find any method. Can somebody help me?

[Altair]

Launch Dirt 3 in windowed mode then press ALT+Enter to change to fullscreen mode. Hope this helps.