Direct3D/Directx 9c problems

[srrabbi]

I recenlty installed the newest drivers for my nvidea card now I am getting the following errors

when I run the dxdiag I find that there is a problem accessing Direct3D when I check the display tab I find that my card is shown but the amount of RAM is not listed.

I then uninstalled the newest driver and installed the last known one that worked (I did try a restore point and this did not work). I have directx 9c

anyone any ideas appart from reinstalling windows which i dont want to do as that would mean reinstalling a load of other software

I am using this mostly for games and they need a min of 32mb of ram so are not working. Everything else seems to work fine on the machine

any ideas at all ppl?

[srrabbi]

if no one can help me with this is there a way to reinstall directx 9c I have downloaded it and am not getting anywhere with trying to reinstall as it is already installed.

[plthayer]

Did you ever find a fix for this, I have a pc that has the same problem. I'm ready to reformat it but if anyone knows of a quick fix i'd rather do that.

[Kojirok11d]

You should reinstall your old driver for NVIDIA card.It may take you three or four minutes.When you reinstall your old driver you will restart your machine about 2 times.Because your machine will remove the current driver and then it will install you old driver (don't use a restore point).
reply me asap!
Good luck!!

[plthayer]

The fix for this is actually a lot more difficult than just reinstalling your old driver or updating to the new driver. I was able to use the method below to get back to directx 9.0b and now my card reports the proper memory size in dxdiag. From what I can tell the problem is actually in directx 9c.

You'll need the following to complete this work around:
Windows XP Pro or Home edition cd without sp2
Direct X 9.0b installation file - http://www.jptsolutions.com/dxtools/...ate_redist.exe
WinRAR - http://www.rarlabs.com/
DirectX UnInstaller - http://www.jptsolutions.com/dxtools/DX9_Uninstal.rar

1. Download the DirectX Uninstaller and extract the files using winrar to c:\dxtemp (This is very important as the batch file will only read from this directory.)
2. Restart your computer into safe mode.
3. Place your Windows XP installation cd into your cdrom drive.
4. Run the undx9.bat file from the c:\dxtemp directory and follow the on screen prompts, when the process is complete restart your computer.
5. Download the directx 9b installer from the website above and run it, restart your computer.

Run dxdiag and check to see if your card is now reporting the correct memory size. You DO NOT have to reinstall your drivers after this process is complete.

Installation media with sp2 won't work due to the fact that sp2 media installs direct x 9 by default. The batch file above simply deletes dx9c and replaces it with the version from your installation media, in most cases this is dx8.1 and it easily upgraded by the dx9b installer from above.

Please let me know if this does or does not work for you.