Computer screen desktop with black dividing line in middle sp

[jsrogers]

Hello, my desktop screen suddenly has a 3 inch vertical black line which splits the screen in two and makes it impossible to move the cursor from the right side to the left.

 

[Brett928S2]

SPECS ?

 

[leoadvise]

Hello, my desktop screen suddenly has a 3 inch vertical black line which splits the screen in two and makes it impossible to move the cursor from the right side to the left.

 

[leoadvise]

Hello, my desktop screen suddenly has a 3 inch vertical black line which splits the screen in two and makes it impossible to move the cursor from the right side to the left.