SetViewPort doesn't work on some GeForce cards, either.
You can get rid of the rest of your customers by supporting OpenGL and not DX.
as long as you don't use it on crap 2D cards like intel onboard it reliable.
...or to put it another way - its reliable if you want to cut out 50% of your potential market at the drop of a hat.You can get rid of the rest of your customers by supporting OpenGL and not DX.