User`s manual
Windows
You will also see a red border on the extend screen
The red border shows the size of the new Windows desktop (Extend).
Use the “+” and “-” controls on the Fit to TV Screen to change the
size of the red border until it fits on the TV screen. Once the red
border is at the edges of the TV screen, click “Apply” to resize the
Windows desktop.
Note: Finer configuration of the size of the border can be achieved
by holding down the CTRL key and clicking the “+” and “-”.
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