ISSUE

CAUSE

RESOLUTION

I see the same thing on my second monitor as I see on my primary monitor.

Your windows desktop has not been extended to the second monitor.

Enable the windows extended desktop.

See: Enabling Windows Extended Desktop.

I enabled the Windows extended desktop, but it disables itself after I apply the setting.

You have an Intel Graphics card, or you do not have your projector connected to your secondary video port, or the projector is not turned on.

Use the instructions in Intel Graphics Monitor Setup to enable the windows extended desktop for your Intel Graphics card. Connect your projector or secondary monitor to the secondary monitor port on your graphics card and make sure that the monitor, or projector, is turned on.

Windows extended desktop is enabled, but still displays the Live output or Alternate output on my primary monitor.

The secondary monitor or monitor 3 is not selected as the output or Alternate output monitor in .

Click Edit > Options. In the Main Output settings, Select Monitor (2) (Secondary) for the Output monitor.

If setting the Alternate Output, click Edit > Options. In Alternate Output settings, select Monitor (3) for the Output Monitor. Click OK. 

Windows extended desktop is enabled, but my primary and secondary monitors are switched.

Your computer is detecting your TV or projector as your primary output device.

Go to the Windows display settings, or screen resolution, and select your primary monitor box. Check the box below Multiple Displays to Make this my main display and click Apply.