Dell Studio XPS M1640 

Processor: T9600 2.8Ghz 

RAM: 4Gb DDR3 

Graphique Card: 1Gb ATI Redaon Mobility HD4670

Driver Version: 8.970.100.3000 

Programme: AMD Catalyst 12.6 

Windows: Windows 7 Intergral 64Bit Service Pack 1 

Hi I have problem in all game... 

Game test: 

BattleField Play4Free

Diablo III ­­´´DEMO´´ 

The problem is after 1-5Min... Big ´´Lag´´ ( FPS 1-5 for Diablo III.) .

Gamme setup is Minimal and/or Regular setup. 

I make this:

Re-Instal Windows

Re-instal Pilot and Programme AMD and avance Uninstal 

Re-instal Game 

I need somthing for testing my video card... 

 i have testing from Video Card Stability Test and the result is 145 benchmark.

I have re-instal the driver from Dell...

New Driver Version: 8.631.0.0 

Version Package Driver: 8.631-090625a-084071C-Dell 

Catalyst Version: 12.6 

From: ATI Technologie Inc 

Driver 2D Version: 8.01.01.921 

Driver 2D Int: /REGISTRY/MACHINE/SYSTEM/ControlSet00... 

Direct3D Version: 8.14.10.0678 

OpenGL Version: 6.14.10.8784 

Catalys Control Center Version: 2009.0625.1812.30825

i can ship my laptop for repart and/or for dianostic

Sorry for my english im french