ultra wide screen

I use an ultra wide screen and when playing the game the left and right have two black boxes because the game doesn't stretch over to the edges.....this is a deal breaker for me if that can't be fixed. I did change the options and tried all settings, fullscreen, full screen windowed, and windowed. none resolve this.....anyone else having this issue?

I play on a similar monitor and have this problem its really annoying the only fix i have found is changing the game resolution but its not an ideal fix.