Hello. Element v2.2

Im added custom layer with my screen on “Screen” layer and it still black

1. Select the “Screen” material, go to “Basic Setting” and edit “Diffuse Color” to white.
2. Seleect the “Screen” material, go to “Textures”/ “Diffuse” and click. in the window that appears, enter the value (-1.00) on X “UV Repeat”.