1. Click on “Control Panel” on the Windows start menu.
2. Click on “Appearance and Themes” in the “Control Panel” window and a
display dialog-box will appear.
3. Click on “Display” and a display dialog box will appear.
4. Navigate to the “Settings” tab on the display dialog-box.
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The correct size setting (resolution)
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If a vertical-frequency option exists on your display settings dialog box,
the correct value is ‘60’ or ‘60 Hz’. Otherwise, just click ‘OK’ and exit the
dialog box.