Ryse son of rome ( mon pc n'arrive pas a le lancer)

salut a tous, alors voila mon problème, je viens d'installer le jeu Ryse: son of rome le problème c'est que je n'arrive pas a lancer le jeu, dés que je double clique sur l'icone de lancement, il ya une petit message qui m'indique que ma carte graphique n'est pas compatible DIRECTX 11, pourtant quand j'ai exécuté DXDIAG voila le résultat que j'ai eu:
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System Information
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Time of this report: 11/5/2014, 12:18:17
Machine name: DARKEL-PC
Operating System: Windows 7 Édition Intégrale 64-bit (6.1, Build 7601) Service Pack 1 (7601.win7sp1_rtm.101119-1850)
Language: French (Regional Setting: French)
System Manufacturer: Alienware
System Model: M15x
BIOS: Ver A09 1.00
Processor: Intel(R) Core(TM) i7 CPU Q 820 @ 1.73GHz (8 CPUs), ~1.7GHz
Memory: 8192MB RAM
Available OS Memory: 8180MB RAM
Page File: 3058MB used, 13301MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
User DPI Setting: Using System DPI
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
DxDiag Version: 6.01.7601.17514 64bit Unicode

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DxDiag Notes
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Display Tab 1: No problems found.
Sound Tab 1: No problems found.
Sound Tab 2: No problems found.
Sound Tab 3: No problems found.
Input Tab: No problems found.

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DirectX Debug Levels
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Direct3D: 0/4 (retail)
DirectDraw: 0/4 (retail)
DirectInput: 0/5 (retail)
DirectMusic: 0/5 (retail)
DirectPlay: 0/9 (retail)
DirectSound: 0/5 (retail)
DirectShow: 0/6 (retail)

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Display Devices
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Card name: NVIDIA GeForce GTX 260M
Manufacturer: NVIDIA
Chip type: GeForce GTX 260M
DAC type: Integrated RAMDAC
Device Key: Enum\PCI\VEN_10DE&DEV_0618&SUBSYS_02A21028&REV_A2
Display Memory: 4069 MB
Dedicated Memory: 997 MB
Shared Memory: 3071 MB
Current Mode: 1920 x 1080 (32 bit) (59Hz)
Monitor Name: Moniteur Plug-and-Play générique
Monitor Model: unknown
Monitor Id: LGD020B
Native Mode: 1920 x 1080(p) (59.934Hz)
Output Type: Internal
Driver Name: nvd3dumx.dll,nvwgf2umx.dll,nvwgf2umx.dll,nvd3dum,nvwgf2um,nvwgf2um
Driver File Version: 9.18.0013.3523 (English)
Driver Version: 9.18.13.3523
DDI Version: 10
Driver Model: WDDM 1.1
Driver Attributes: Final Retail
Driver Date/Size: 3/4/2014 15:35:23, 17755424 bytes
WHQL Logo'd: Yes
WHQL Date Stamp:
Device Identifier: {D7B71E3E-4558-11CF-5B7E-AF221FC2C435}
Vendor ID: 0x10DE
Device ID: 0x0618
SubSys ID: 0x02A21028
Revision ID: 0x00A2
Driver Strong Name: oem19.inf:NVIDIA_SetA_Devices.NTamd64.6.1:Section034:9.18.13.3523:pci\ven_10de&dev_0618&subsys_02a21028
Rank Of Driver: 00E00001
Video Accel: ModeMPEG2_A ModeMPEG2_C ModeVC1_C ModeWMV9_C