[support] status error GL

[rado]

Hi! newbie here...
OS--------Centos 5.1
php-------php-5.1.6-15.el5
gd--------2..0..33-9.3.fc6
drupal----5.5

I bring the site up,administer, gives a warning "drupal has problems
check status", go to status and I get the error: gl is either not
installed or outdated. Everything is up to spec...php is calling gd.so
and it is there in /usr/lib64/php/modules/ right where it's supposed to
be and I can't figure out why I am getting this msg...all help be
appreciated for sure

thx 
rado