Graphics driver creating diagonal edges????

[Sargimo]

While trying to get an image in my viewport to display better, I switched my graphics driver from DirectX 9.0 to 10.0. The result worked fine on the image but now when I create parametric geometry, There are diagonal edges through all of the faces. ( one quad becomes two tris ).

 

I attached a screen cap of my settings, Any help would be soooo appreciated.

 

Thanks Josh

 

Windows vista ultimate 64 bit, intel I7, Nvidia GeForce 9800

[Sargimo]

In the "configure driver" dialog, checking "Match Bitmap Size as Closely as Possible" Made the DirectX9 image perfect without the xtra edges. I am having touble making those seetings stick ????

 

Thanks Bri for the help, Josh