Second monitor stuck at 720p

[Legallord]

I just built a new system and im using a 1080p tv to pair it. Before it was easy to pair and everything worked.
When i try to change the display size on the Tv settings just crash/close.

http://imgur.com/a/i0DMc GIF of what i usualy did to fix it

 

[Legallord]

Fixed..