“RESET TO DEFAULT”: Pressing “OSD” button on this icon will set all parameters back to the status when the monitor left factory. 
“SMOOTHNESS / SHARPNESS ADJUST”: When this item is selected, there will be only the smoothness / sharpness adjust icon with an adjustment indication bar under it between the main menu area and the video signal mode. Press “+” button to increase smoothness of display (decrease sharpness). Press 
“MODE SELECT”: Pressing “OSD” button on this icon will have no effect at all if the display mode is not one of the confusing modes. The confusing modes here mean 640 x 400 or 720 x 400 in display resolution as both mode have refresh rate of 70Hz, horizontal frequency of 31.5KHz and pixel frequency of 31.5MHz making it impossible for automatic select. These modes are not used in normal Windows display.
“EXIT”: Return to “Main menu”.
“EXIT”: Exit OSD setup with all adjustments saved.