[Centos] problem building the isos?

Hello all,
I am making my own distribution based on RHEL AS 3U4 (with additional 
rpms, like urpmi, webmin, nessus, Maildir format by default for Postfix, 
courier-IMAP etc.)  and I would like to have information from the CentOS 
team.  I am generating the isos of this distribution but during the 
launching of anaconda, the graphic interface failed to work, so the 
installation in text mode is the only one possible.  I think i find the 
problem:  pam.
by using pam-0.75-51, all is ok (graphical install of anaconda) but with 
more recent versions, anaconda refuses to launch the graphical install.  
Question:  had somebody similar problems??  Thank you in advance and 
good year to all :)


-- 
jean-sébastien Hubert
Service Informatique Air-Austral
0262 93 10 34
interne: 182
http://www.air-austral.com