Forum Display Size? (1024x1028, etc)

[Necrosaro420]

I use 1440 mode, so this isnt an issue for me, but Had someone complain that my forums were hard to see in 1024 mode. So I switched over to this mode and well its true! It makes a scroll bar at the bottom of the screen etc.

What/how do I fix this to make it a little smaller so that 1024 fits on the screen correctly without a horizontal scroll bar?

Thanks!