BenQ FP231W User Manual page 32

Miscellaneous sub menu
Input Select:
Select D-sub (analog), DVI (digital), S-Video,
or Composite input.
Display Mode:
t u
Press or key to toggle between these
three options: Full, 1:1, or Aspect. When done,
press "Enter" to activate the settings. To return
to previous menu, press "Exit."
Display Information.
32 How to adjust your Monitor