Hope this will help
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System Information
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Time of this report: 1/3/2010, 17:58:18
Machine name: HOME-PC
Operating System: Windows Vista™ Home Premium (6.0, Build 6002) Service Pack 2 (6002.vistasp2_gdr.090803-2339)
Language: English (Regional Setting: English)
System Manufacturer: Gigabyte Technology Co., Ltd.
System Model: EX58-UD5
BIOS: Award Modular BIOS v6.00PG
Processor: Intel(R) Core(TM) i7 CPU 920 @ 2.67GHz (8 CPUs), ~2.8GHz
Memory: 6140MB RAM
Page File: 2824MB used, 9658MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 11
DX Setup Parameters: Not found
DxDiag Version: 7.00.6002.18107 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.
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 280
Manufacturer: NVIDIA
Chip type: GeForce GTX 280
DAC type: Integrated RAMDAC
Device Key: Enum\PCI\VEN_10DE&DEV_05E1&SUBSYS_055710DE&REV_A1
Display Memory: 3820 MB
Dedicated Memory: 1005 MB
Shared Memory: 2814 MB
Current Mode: 1920 x 1200 (32 bit) (59Hz)
Monitor: Hanns.G HG281
Driver Name: nvd3dumx.dll,nvwgf2umx.dll,nvwgf2umx.dll,nvd3dum,nvwgf2um,nvwgf2um
Driver Version: 8.17.0011.9581 (English)
DDI Version: 10
BGRA Supported: Yes
Driver Attributes: Final Retail
Driver Date/Size: 12/11/2009 06:17:14, 11776104 bytes
WHQL Logo'd: n/a
WHQL Date Stamp: n/a
Device Identifier: {D7B71E3E-46A1-11CF-0356-5C251FC2C535}
Vendor ID: 0x10DE
Device ID: 0x05E1
SubSys ID: 0x055710DE
Revision ID: 0x00A1
Revision ID: 0x00A1
Video Accel: ModeMPEG2_A ModeMPEG2_C ModeVC1_C ModeWMV9_C
DDraw Status: Enabled
D3D Status: Enabled
AGP Status: Enabled