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

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

Current developer of UBB.threads PHP Forum Software
Current Release: UBBT 7.7.5 // Work In Progress: soon
isaac @ id242.com // my forum @ CelicaHobby.com