He's gonna have to link the "libGL.so" also, so open a terminal and cd to your paintball directory, then type "locate libGL.so", it should respond with some locations that end in libGL.so.x.x er whatever, most likely the one you want is /usr/lib/libGL.so...., use whichever one has the highest number and do "ln -s /usr/lib/libGL.so.1.2 libGL.so" if the highest version you have is libGL.so.1.2