The HWInfo OSD functionality is based on Intel's PresentMon, which means it can monitor things like in-game FPS and frame-time (in milliseconds), but that means it loses Windows XP support.

While many users recommend downloading ICC profiles for your monitor model, they often turn out to be imprecise due to manufacturing tolerances. I suggest you go by what looks right to you on the ...

If the Power button and the on-screen display (OSD) menu are both locked, try doing a hard reset. Disconnect all cables (HDMI, DisplayPort, etc.) and the monitor’s power cord.