Also, isn't it annoying that native dxdiag always says the graphics card is X Windows? Why is that, and should we change Wine so that the true card's info is reported by native dxdiag?
I don't know, but if I were to guess I'd say it probably doesn't get that information from d3d, but from gdi32 or winex11.drv.
I think it is a resource string in winex11.drv.
Concerning this topic, there are some apps that try to load the nvidia/ati specific driver files, and have vendor specific strings. City of Heroes tried to find nvogl.dll(or similar, don't remember exactly). I don't know what it tried to do with it, but this could potentially be a bigger problem than just a string in dxdiag.
Most likely it attempted to load the OpenGL ICD driver directly and that way avoid using opengl32.dll / gdi32.dll.
Roderick