Have you installed the drivers for you graphics card ?
Have a look in /usr/lib/ to see if there is any file named
libX11.so.6 or libX11.so.6.x.x (x is a version number). If there is create a system link to the lib file in /usr/lib/
And see if you have the libX11-6 package installed for your distro.
Have a look in /usr/lib/ to see if there is any file named
libX11.so.6 or libX11.so.6.x.x (x is a version number). If there is create a system link to the lib file in /usr/lib/
And see if you have the libX11-6 package installed for your distro.