Ask Proxima C130 User Manual page 23

no computer image, just the words "Signal out of
range"
Only my laptop's background appears, not the
Desktop icons
press the Auto Image button on keypad
adjust computer refresh rate in Control
Panel>Display>Settings>Advanced>Adapter
(location varies by operating system)
you may also need to set a different
resolution on your computer, as shown
in the following problem, "image fuzzy
or cropped"
Disable "Extend my Windows Desktop" in
Control Panel>Display>Settings>Display 2
(location varies by operating system)
Uncheck this
option, then
click Apply
23
computer image projected
Background and Desktop projected