you should be ok to run it try updating your graphics drivers.
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Day of Defeat: Source (PC) Day of Defeat: Source
Publisher: Valve Software
Developer: Valve Software
Minimum System Requirements
OS:
Windows 98
/
ME
/
2000
/
XP
Processor: 1.2 GHz
Memory:
256 MB
Hard Drive:
Video Memory: 32 MB
Sound Card: DirectX 7.0 Compatible
DirectX: 7.0
Keyboard & Mouse
CD/DVD Rom Drive