Interesting stuff Ataros.
It seems since Vista Win 7 triple buffering has had some changes.
"
Q
Can anyone let me know whether the triple buffering and vsync in the Nvidia Control Panel work for DirectX games?
A
The 'triple buffering' option does affect rendering behavior within the modern DirectX APIs.
The 'vertical synchronization' control is less cooperative: in Windows XP, it applies to both OpenGL and DirectX 9 APIs; in Windows Vista and Windows 7,
it only affects the OpenGL APIs."
http://forums.nvidia.com/index.php?showtopic=173860