The AGP Texture driver appears disabled only on the oldest Intel Graphics Drivers. To solve this issue, I suggest you to update the drivers to the latest version available. You can do this manually, or you can use Intel Driver Update Utility. In addition, download and install the latest version of DirectX. If this doesn't help, Intel recommends to contact the game provider to get a setting or update that allows the game to check for local video memory first. You can check the official web page for further information.
