nah, 2 version, 32 et 64 bits.

En effet un test purement pro ati :
" Video Card
Recommended: 256 MB 100% DirectX 9 graphic card with Pixel Shader 3.0 hardware support (ATI Radeon X1800 series or better)
You Have: NVIDIA GeForce 7600 GT (GeForce 7600 GT)
FAIL: Sorry, your video card does not meet this recommended requirement. Upgrading to a more powerful video card will make all your applications look better. Click the ´We Recommend´ button to see some great options.
Video Card Features - Minimum attributes of your Video Card

Video RAM: Required - 256 MB , You have - 256.0 MB
Video Card 3D Acceleration: Required - Yes , You have - Yes
Video HW Transform & Lighting: Required - Yes , You have - Yes
Vertex Shader Ver.: Required - 3.0 , You have - 3.0
Pixel Shader Ver.: Required - 3.0 , You have - 3.0"
=> echec du optimal pour la video card.

il passe avec la mienne, elle est pci-e t´a carte ou agp? P-e qu´elle n´est pas encore dans la base de donnée.