Originally Posted by AstroCat
How do I make the forum fluid width?

The same as it has always been:
Control Panel > General: Maximum Table Width For All Screens

Examples:
100% (for full width)
1200px (for a fixed max-width)

current developer of UBB.threads php forum software
current release: UBB.threads 8.0.1 // wip: UBB.threads 8.1.0
isaac @ id242.com // my forum @ CelicaHobby.com