Ok, I just got Ubuntu (Total noob

), and I installed radiant (using Ingar's instructions) but when I run "radiant" from Terminal, I get this error: "radiant: error while loading shared libraries: libgtkglext-x11-1.0.so.0: cannot open shared object file: No such file or directory"
Hao can I has libgtkglext-x11-1.0.so.0? D:
Instruction would be teh appreciated :], Thanks,
face