Apple AppleVision 1710AV - Manual (Page 52)

3 To turn overscan on, click On.
The screen image expands until there is a smaller black border between the
image and the edge of the screen.
Note: When overscan is on, you cannot adjust screen geometry or
convergence.
4 To turn overscan off, click Off.
The screen image returns to its previous size.
5 Close the AppleVision Setup control panel.
IMPORTANT When overscan is on, you may not be able to choose commands
from the menus at the top of your display. If this occurs, you can’t use a menu
to open AppleVision Setup control panel and turn overscan off. Instead, open
the AppleVision Setup control panel by pressing a Control button on the front
of your display.
38 Chapter 3
Click to turn overscan
on or off.