Its a hardware compatibility error:
- Make sure you have the latest DirectX drivers
- Try to run the game in window-mode
- Try to change some Soldat Config settings (turn off Antialiasing, check 16-bit)
- Install the latest or different video drivers
- Try changing the windows desktop resolution and bit-rate
- Try turning down or up the graphics hardware acceleration (My Computer/Properties/Performance/Graphics)
- Try updating your motherboard drivers
- Check also this this topic on the forum - 3d initialization problem