The requirement is pretty low. What's the video card you have?

Requirement:

CPU: Pentium 4 class or AMD Athlon XP processor, 1.4 GHz or equivalent
Memory:1 GB RAM (Windows 7) / 512 MB RAM (Vista SP2) / 256 MB RAM (XP SP3)
2.0 GB uncompressed hard drive space
Graphics Cards: 128 MB DirectX 9.0c-compatible, 3D video card supporting Shaders 2.0 (NVIDIA GeForce FX or better, ATI Radeon 9500 or better)
16-bit DirectX 9-compatible sound card
16X speed DVD-ROM drive
DirectX 9.0c (included)
NOTE: Integrated (built-in) onboard video cards are NOT supported by this game