Can't enable Direct3D Acceleration!

Archived from groups: microsoft.public.directx.video,microsoft.public.windowsxp.help_and_support (More info?)

On Wed, 27 Jul 2005 04:50:15 -0400, JMI wrote:

> I can't seem to enable Direct3D acceleration. I don't know what happened
> but all of a sudden I can't run any of my games. When I try to run Unreal
> Tournament 2004 I get t he message:
>
> "Please enable Direct3D acceleration. You can do this by starting dxdiag
> and enabling Direct3D Aceleration in the Display 1/2 tab after installing
> DirectX 8.1b (or later) and the latest drivers for you graphics card."
>
> When I open dxdiag and go to the Display tab, under DirectX Features
> Direct3D Acceleration says "Not Available" along with DirectDraw and AGP
> Texture Acceleration. All are unavailable.
>
> I have DirectX 9.0c installed and I have an ATI Radeon 9600XT 256 video
> card.
>
> I've tried reinstalling the video drivers and DirectX too.

This is a long time issue with ATI cards, try checking the ATI forums. If
you have a system restore point available before the problem started, use
it. Otherwise try completely uninstalling the video drivers and restarting
your system so that it comes up in VGA mode. Reinstall the ATI video
drivers and restart. That will work some of the time, the rest of the time
if you don't have a system restore point you have to reinstall Windows
(repair mode).