Game won't start

[macik]

Hi,
I have a problem with recently purchased CLOD on DVD.
I have installed the game, connected to Steam, validated etc., but still, all I see when I try to launch it is just the golden wheel with a plane.
I tried to reinstall Steam (from C: to D, reinstalled CLOD (from C: to D, reinstalled .NET, tried also 4.5, reinstalled DX, downloaded newest nVidia drivers...
What should I do next in order to play? Where can I see any logs from the game in order to find out what's wrong?

Thanks

Here are my computer specifications:


Card name: NVIDIA GeForce 7300 GT, drivers 307.83.


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System Information
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Operating System: Windows 7 Ultimate 32-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_ldr.120330-1503)
Language: Czech (Regional Setting: Czech)
System Manufacturer: System manufacturer
System Model: System Product Name
BIOS: BIOS Date: 07/12/06 00:28:03 Ver: 08.00.10
Processor: Intel(R) Pentium(R) 4 CPU 3.06GHz (2 CPUs), ~3.1GHz
Memory: 4096MB RAM
Available OS Memory: 3456MB RAM
Page File: 1527MB used, 5382MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7601.17514 32bit Unicode

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DxDiag Notes
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Display Tab 1: No problems found.
Sound Tab 1: No problems found.
Sound Tab 2: No problems found.
Input Tab: No problems found.