I had the latest video drivers installed. I just deleted the video drivers and reinstalled them.
Now everything is working. Thank you for the tip!

<r> I have a problem in the campaign view of the game, the background and some visuals seem to be missing (see screenshot)<br/>
Also when I select a battlefield to see what the map looks like I see nothing at all.<br/>
In-game I have no problems whatsoever. <br/>
<br/>
I am running on Windows 7 ...