nvidia 1.0-9631 telepítés hiba

ahoy,

eddig ment minden jól a driver telepítésével, de most valamiért ezt kapom:
ERROR: The CC sanity check failed:

The C compiler 'gcc' does not appear to be able to
create executables. Please make sure you have
your Linux distribution's libc development package
installed and that 'gcc' is a valid C compiler
name.

gcc a path ban van:
[root@cerbero home]# gcc
gcc: no input files
[root@cerbero home]#

libc-devel van:
[root@cerbero home]# rpm -qa|grep glibc
glibc-common-2.5-3
glibc-devel-2.5-3
glibc-headers-2.5-3
glibc-2.5-3
glibc-utils-2.5-3
[root@cerbero home]#

viszont ötletem nincs...