First, check if your computer meets the minimum system requirements to run Tiger Woods PGA TOUR 08:
- OS: Windows XP/Vista;
- Processor: Pentium 4 with 1.6 GHz or Equivalent;
- RAM Memory: 256 MB;
- Hard Drive: 3 GB Free;
- Video Memory: 64 MB (GeForce 3 or ATI Radeon 8500);
- Sound Card: DirectX Compatible;
- DirectX: 9.0c.
If the requirements are fulfilled, update your video card drivers and uninstall and reinstall the game. Also, I suggest you run a system optimizer like Glary Utilities.