OS: Windows XP with latest service pack installed or Vista Processor: Intel Pentium(R) 4 2.0 GHz or AMD equivalent RAM: 1 GB RAM Hard Drive: 8 GB available space Video Card: NVIDIA GeForce(R) 6600 128 MB DirectX 9.0c-compatible card with Pixel Shaders 2.0b support or equivalent Radeon x700) with latest DirectX drivers DirectX: Version 9.0c