MSI Wind Top AP2021 Series User Manual page 40

System Operations (Windows 7)
Resetting system Adjusting wide screen mode
2. Press the Up & Down buttons to adjust the system volume.
3-10
3. Press the Mode button to view the signal source. Press it again to select PC/ HDMI/
monitor off mode.
Important
Whenever any error takes place and incurs abnormal display or volume malfunction,
enter the OSD menu and reset your monitor to restore all settings to manufacturer
default for optimal performance.