I just downloaded the game from steam. When I start the game a window is opening but the screen is still black. I still can open the steam community. I got a crash report in my game folder with wrong date and the message:
WARNING: Steam client may have crashed, possible undefined steam behavior
Steam error: Could not initialize the native Steamworks API. This is usually caused by a missing steam_appid.txt file or if the Steam client is not running.
details: SteamInitializeFailed
Date: 01/11/2013 10:55:13
OS: Microsoft Windows NT 6.1.7601 Service Pack 1
BuildInfo: 7900
Steam error: Could not initialize the native Steamworks API. This is usually caused by a missing steam_appid.txt file or if the Steam client is not running.
details: SteamInitializeFailed
Date: 01/11/2013 10:55:16
OS: Microsoft Windows NT 6.1.7601 Service Pack 1
BuildInfo: 7900
WARNING: Steam client may have crashed, possible undefined steam behavior
Steam error: Could not initialize the native Steamworks API. This is usually caused by a missing steam_appid.txt file or if the Steam client is not running.
details: SteamInitializeFailed
Can you help me?