I have already changed 2 of these monitors and 3D still does not work. I cannot select the monitor (3D NVIDIA VISION) in the NVIDIA settings. The only choice is always 3D Vision Discover, even though I have NVIDIA 3D Pro glasses. (Worked fine with the old Acer monitor). I have already tried everything with HDMI and Display Port all Hz settings. No chance. G-Sync works perfectly with full resolution at 2560x1440 pixels with 144Hz.