Your video card/graphic driver and monitor together determine the available resolutions. You can select the desired resolution under Windows® Control Panel with the "Display properties".
For normal cleaning, use a clean, soft cloth. For extensive cleaning, please use isopropyl alcohol. Do not use other solvents such as ethyl alcohol, ethanol, acetone, hexane, etc
#3 What if I get lost when I am making monitor adjustments via OSD?
Simply press the OK button, then select 'Reset' to recall all of the original factory settings.