Bonjour Denis,
Voici le résultat de dxdiag:
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System Information
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Time of this report: 9/2/2010, 11:47:23
Machine name: xxx
Operating System: Windows 7 Édition Familiale Premium 64-bit (6.1, Build 7600) (7600.win7_gdr.100618-1621)
Language: French (Regional Setting: French)
System Manufacturer: System manufacturer
System Model: System Product Name
BIOS: BIOS Date: 01/28/10 17:20:14 Ver: 08.00.15
Processor: Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz (8 CPUs), ~2.7GHz
Memory: 6144MB RAM
Available OS Memory: 6136MB RAM
Page File: 1902MB used, 8327MB 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: 6.01.7600.16385 32bit 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 285
Manufacturer: NVIDIA
Chip type: GeForce GTX 285
DAC type: Integrated RAMDAC
Device Key: Enum\PCI\VEN_10DE&DEV_05E3&SUBSYS_18801462&REV_A1
Display Memory: 3817 MB
Dedicated Memory: 1005 MB
Shared Memory: 2811 MB
Current Mode: 1680 x 1050 (32 bit) (60Hz)
Monitor Name: Moniteur Plug-and-Play générique
Monitor Model: L222W
Monitor Id: GSM5664
Native Mode: 1680 x 1050(p) (59.883Hz)
Output Type: HD15
Driver Name: nvd3dumx.dll,nvwgf2umx.dll,nvwgf2umx.dll,nvd3dum,nvwgf2um,nvwgf2um
Driver File Version: 8.17.0011.9745 (English)
Driver Version: 8.17.11.9745
DDI Version: 10
Driver Model: WDDM 1.1
Driver Attributes: Final Retail
Driver Date/Size: 4/3/2010 22:55:32, 11906664 bytes
WHQL Logo'd: n/a
WHQL Date Stamp: n/a
Device Identifier: {D7B71E3E-46A3-11CF-C351-8B381FC2C535}
Vendor ID: 0x10DE
Device ID: 0x05E3
SubSys ID: 0x18801462
Revision ID: 0x00A1