Did you click on the source button? Also you have to go to your desktop right click with the mouse thern click on properties you will go to your display settings you should see 2 display squares 1 & 2. now you can clone or extend. Another thing it would help to let us know you OS ie win xp or 7 or whatever. Whether you've got Nvidia or ATI or onboard Graphics. So I'm just giving you the basic info..Hope that helps Merry Xmas.
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Did you click on the source button? Also you have to go to your desktop right click with the mouse thern click on properties you will go to your display settings you should see 2 display squares 1 & 2. now you can clone or extend. Another thing it would help to let us know you OS ie win xp or 7 or whatever. Whether you've got Nvidia or ATI or onboard Graphics. So I'm just giving you the basic info..Hope that helps Merry Xmas.