Black bar in the right side of screen

Hey guys when im at the recommenden resolution i get a black bar on the right side of my acer x223w screen?

I went into the menu on the screen to push the screen to the right but it couldnt push the screen enough to get rid of the black bar..

Now i went into the resolution on my computer and went a resolution down from

1680x1050 to 1600x1200 now the black bar is gone but it dosent looks quite as good as on recommenden resolution is there a way to fix the black bar?

Also when i turn my acer computer on and the "acer" logo is there i can see that the black bar is there since the "acer" logo is moved to the left..

I have a acer predator g3610

Is there a way to fix this ?