Get the Latest DirectX Herehttp://www.microsoft.com/windows/directx/default.mspx
Microsoft DirectX System Requirementshttp://www.microsoft.com/Windows/DirectX/p...qs/default.mspx
Some video card manufacturers have updated drivers that are specifically designed to work with DirectX 9.0. It's possible that these drivers will benefit performance, quality, or stability of games running DirectX 9.0. Please make sure you check with your video card manufacturer to see if such drivers exist for your video card.
While your existing drivers should be as compatible with DirectX 9.0 as they were with DirectX 8.1, you may need to update them to take full advantage of some of latest DirectX 9.0 enhancements.You may find current drivers either at Windows Update or on the Web site of the company that manufactured your hardware. Drivers available from Windows Update have been extensively tested and certified by Microsoft's Windows Hardware Quality Labs (WHQL.)
How to Download and Install DirectXhttp://support.microsoft.com/?kbid=179113
How to Determine the Version of DirectX Using the DirectX Diagnostic Toolhttp://support.microsoft.com/kb/157730/EN-US/
To use the DirectX Diagnostic Tool to determine the version of DirectX that is installed on your computer, follow these steps: 1. Click Start, and then click Run.
2. Type dxdiag, and then click OK.
3. On the System tab, note the version of DirectX displayed on the DirectX Version line.
4. On the DirectX Files tab, check the version information for each DirectX file.
5. When you are finished checking file versions, click Exit.
If Windows cannot find the dxdiag program, DirectX version 5.0 or earlier is installed on your computer. If this is the case, download and install the current version of DirectX.
To download the latest version fo DirectX, visit the following Microsoft Web site: http://www.microsoft.com/windows/directx/d...ads/default.asp