Yabause Sega Saturn Emulator Error

[MG]

Yabause first gave garbled sound, now freezes
any ideas?

root at THUNDERCAT1:/home/max# yabause
Can't set translation file
Xlib:  extension "GLX" missing on display ":0.0".
Xlib:  extension "GLX" missing on display ":0.0".
Xlib:  extension "GLX" missing on display ":0.0".
Xlib:  extension "GLX" missing on display ":0.0".
QGLContext::makeCurrent(): Cannot make invalid context current.
Xlib:  extension "GLX" missing on display ":0.0".
Xlib:  extension "GLX" missing on display ":0.0".
Xlib:  extension "GLX" missing on display ":0.0".
Xlib:  extension "GLX" missing on display ":0.0".