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DirectX plays a role in many functions, including 3D rendering,
video playback, still and
motion capture, TV Viewing applications, joystick and mouse interfaces, networking for multiplayer games, and many more. When DirectX features are disabled,
video playback and 3D processing will not function as intended.
Some or all display driver/multimedia features of the ATI product are disabled when one or more supported items in DXDIAG are DISABLED or NOT AVAILABLE.
Certain DirectX features are dependent on other DirectX active features. For example, if DirectDraw Acceleration is disabled, Direct3D and AGP Texture acceleration is listed as NOT AVAILABLE even if the graphics card supports these features.
The DISPLAY tab in DXDiag can Enable/Disable the following DirectX features:
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DirectDraw Acceleration
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Direct3D Acceleration
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AGP Texture Acceleration
Beside each of these features, the word ENABLED, DISABLED, or NOT AVAILABLE appears depending on whether the feature is active and/or supported.
For supported features, an active button appears beside the feature to enable/disable it. For unsupported features, the button is greyed out.
To ensure proper operation of display driver/multimedia features, all supported DirectX features must be ENABLED.
- When all of the features are disabled, click on the enable button to activate all three Accelerators and test the Direct3D and ensure that it is functioning.

- Uninstall the drivers and reinstall with the most current package.
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The drivers for this device are not installed (Code 28)
To install the drivers for this device, click Update Driver. This starts the Hardware Update...
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Code 32: A driver (service) for this device has been disabled
A driver (service) for this device has been disabled.
An alternate driver may be providing this functionality. (Code 32)
...
Add Time:08.13, 2008 Hits:4,058
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Windows cannot initialize the device driver for this hardware (Code 37)
The driver returned failure from its DriverEntry routine. Uninstall the driver,...
Add Time:08.29, 2008 Hits:3,207
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"Unable to Load Device Driver" Error Occurs When You Start Windows XP
When you start Windows XP, you may receive one of the following error messages:
STOP: 0xc000026C [Unable to load...
Add Time:08.27, 2008 Hits:2,567
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Reinstall the drivers for this device (Code 18)
The drivers for this device must be reinstalled.
Click Update Driver to start the Hardware Update Wizard....
Add Time:08.28, 2008 Hits:2,247
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This article shows you the solutions to check your audio driver version under Windows Vista, XP, 98SE, ME or 2000.
If you have Windows Vista:
1. Click Start > Settings...
Add Time:05.26, 2009 Hits:1,902
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Defragment your Disk Drive Volumes in Windows XP
This article describes how to defragment your disk drive volumes and describes the limitations of using Disk Defragmenter Microsoft Management...
Add Time:09.22, 2008 Hits:1,494
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How to Scan System Driver Error in Windows XP
Device Drivers are important software files that Windows loads into memory when it starts up to support specific hardware devices...
Add Time:07.21, 2008 Hits:1,387
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Manually check the graphics driver version in Microsoft Windows Vista - Check the Intel® Graphics Media Accelerator tab or Check Device Manager.
Check the Intel®...
Add Time:05.26, 2009 Hits:927
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For IDE part , please excute the setup program of the IDE driver files. Then you can choose uninstall process, and follow up the wizard to complete the process.
For VGA part...
Add Time:05.26, 2009 Hits:456