Leiden and Dreamora: Actually I prefer vsync in my games so I have it set to "On, unless app specifies) The issue is not the graphics adapter but the fact that windows is running at a different Hz than the Max window which is flipping independently of the desktop Hz.
TonyG: That would explain it, so it's either picking 60Hz, which is the default Hz if you leave that flag out of Graphics, or the first available Hz setting (at chosen res and bit depth) after checking the card's possible display modes. However I don't think it's doing the second thing because I have an FPS counter in-game that is showing 60 and I know my video card can display at 56Hz in 800x600x32bit and my FPS counter would detect that (I think).
TonyG: That would explain it, so it's either picking 60Hz, which is the default Hz if you leave that flag out of Graphics, or the first available Hz setting (at chosen res and bit depth) after checking the card's possible display modes. However I don't think it's doing the second thing because I have an FPS counter in-game that is showing 60 and I know my video card can display at 56Hz in 800x600x32bit and my FPS counter would detect that (I think).