[alemao@thc ~]$ beryl-manager 
[alemao@thc ~]$ beryl: No GLXFBConfig for depth 32
beryl: No GLXFBConfig for depth 32
beryl: No GLXFBConfig for depth 32
XGL Absent, checking for NVIDIA
Nvidia Present
Relaunching beryl with __GL_YIELD="NOTHING"
XGL Absent, checking for NVIDIA
Nvidia Present
beryl: No GLXFBConfig for depth 32
beryl: No GLXFBConfig for depth 32
beryl: No GLXFBConfig for depth 32
Initiating splash
beryl: water: GL_ARB_fragment_program is missing
Reloading all options.