Installare file .run

[P4nico]

Sto tentando di installare un gioco su linux, per l'esattezza Enemy Territory ma quando vado per eseguirlo mi da questo errore :

[root@localhost Download]# sh et-linux-2.55.x86.run
Verifying archive integrity... All good.
Uncompressing Enemy Territory 2.55...........................................................................................................................................................................................................................................................................................................
/root/.setup6628: error while loading shared libraries: libgtk-1.2.so.0: cannot open shared object file: No such file or directory
./setup.sh: line 143:  6653 Abortito                "$setup" "$@" 2>>$NULL
The setup program seems to have failed on x86/glibc-2.1

See [url]http://zerowing.idsoftware.com/linux/[/url] for troubleshooting 

Qualcuno sa cosa potrebbe essere?