I suggest you to check if your computer meets all minimum system requirements to run Rise of the Argonauts:
- OS: Windows XP/Vista;
- Processor: Pentium or AMD 3.0GHz;
- RAM: 1GB;
- Hard Disk Space: 12GB;
- Video Card: Geforce 6800/Radeon X1300;
- DirectX Compatible Sound Card
If the requirements are fulfilled, try to update the DirectX and to reinstall the game.