hi anybody

here is a problem, i wanted to try world of goo's demo on my linux machine, but it has been crashed......

here is a log file.....

[t=0.00] InhibitGnomeScreensaver constructor: couldn't execute "gnome-screensaver-command"!

Libraries used:
linux-vdso.so.1 => (0x00007fff60fff000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f175e729000)
libGL.so.1 => /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1 (0x00007f175e4c9000)
libGLU.so.1 => /usr/lib/x86_64-linux-gnu/libGLU.so.1 (0x00007f175e25a000)
libSDL-1.2.so.0 => ./libs64/libSDL-1.2.so.0 (0x00007f175df94000)
libSDL_mixer-1.2.so.0 => ./libs64/libSDL_mixer-1.2.so.0 (0x00007f175dd0c000)
libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f175da0b000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f175d711000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f175d354000)
/lib64/ld-linux-x86-64.so.2 (0x00007f175e950000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f175d136000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f175cf32000)
libglapi.so.0 => /usr/lib/x86_64-linux-gnu/libglapi.so.0 (0x00007f175cd0d000)
libXext.so.6 => /usr/lib/x86_64-linux-gnu/libXext.so.6 (0x00007f175cafb000)
libXdamage.so.1 => /usr/lib/x86_64-linux-gnu/libXdamage.so.1 (0x00007f175c8f8000)
libXfixes.so.3 => /usr/lib/x86_64-linux-gnu/libXfixes.so.3 (0x00007f175c6f2000)
libX11-xcb.so.1 => /usr/lib/x86_64-linux-gnu/libX11-xcb.so.1 (0x00007f175c4ef000)
libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6 (0x00007f175c1bb000)
libxcb-glx.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-glx.so.0 (0x00007f175bfa4000)
libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 (0x00007f175bd85000)
libXxf86vm.so.1 => /usr/lib/x86_64-linux-gnu/libXxf86vm.so.1 (0x00007f175bb80000)
libdrm.so.2 => /usr/lib/x86_64-linux-gnu/libdrm.so.2 (0x00007f175b975000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f175b75e000)
libXau.so.6 => /usr/lib/x86_64-linux-gnu/libXau.so.6 (0x00007f175b55b000)
libXdmcp.so.6 => /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007f175b354000)

glxinfo not found!