Why isn't it working?

Recommended: Intel Core® 2 Duo 2.2 GHz or AMD Athlon 64 X2 4400+ or better
You Have: 4 processors running - Intel(R) Core(TM)2 Quad CPU Q9300 @ 2.50GHz PASS
System RAM
Recommended: 1 GB Windows Xp / 2 GB Windows Vista
You Have: 3.5 GB PASS
Operating System
Recommended: Windows® XP/Windows Vista® (only)
You Have: Microsoft Windows Vista Business Edition, 32-bit (Build Service Pack 16001) PASS
Video Card
Recommended: 256 MB DirectX® 10.0-compliant video card or DirectX 9.0-compliant card with Shader Model 3.0 or higher (NVIDIA GeForce 6800+ / ATI Radeon X1600+)
You Have: NVIDIA Quadro NVS 290 () PASS
Video Card Features - Minimum attributes of your Video Card Video RAM: Required - 256 MB , You have - 1.7 GB
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 - 4.0
Pixel Shader Ver.: Required - 3.0 , You have - 4.0

Ok well this is the test for the recommended requirements for assassins creed but when i go to play it it goes like really slow and i dont know why, i have turned down the reslution down to 800x600 and it is playable but still a bit slow, anyone know why is this happening and how can i improve? i dont know the fps because i dont know how to find it out. thanks

its all listed above and yes, i read that link and its everything up to date and clean, i run ccleaner every day and my panda doesnt stop working, the drivers are the latest for this video card which, for srtest.com overpasses really well the recommended requirements so i dont know whats going on. thnks anywayelmenda546