I've tried following things:
- Reboot of computer
- Reinstallation of the game
- Start the game with and without the latest patch
If needed, here's my computer's spec:
- Windows Vista 32bit
- Intel Core 2 Duo E8400
- Gigabyte EP45-DS3
- nVidia GeForce 8800GT
- 4GB RAM
Sorry for my bad English.