Hi Kjetil, Ceres 0.56 compiles cleanly and runs well on my Ubuntu 10.04 system (32-bit). I've customized the file at /usr/X11R6/lib/X11/app-defaults/Ceres.ad but none of my changes take effect. Is this file actually doing anything ? Is there another location Ceres looks for its app resource file ? I have a color configuration I'd like to use. Best, dp