Gateway TC73 Reference Manual page 59

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2 Click (Change display settings). The
Settings
dialog box opens.
3 Click monitor 2.
4 Adjust properties such as Resolution or Colors if
necessary.
5 To use the monitor, projector, or television as a
"mirror" (duplicate) of the notebook display
(both displays have the same content), click to
deselect the check box for Extend my Windows
desktop onto this monitor.
6 To use the monitor, projector, or television as an
extension of your desktop (increasing the size of
your Windows desktop), click to select the check
box for Extend my Windows desktop onto this
monitor. You can click and drag the "2" monitor
icon to position it the same way the physical
monitor is arranged on your desk.
7 Click OK.
Display
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