[Zope] Zope 2.6.1 don't run in Linux Redhat 7.3

Hi, I can't run Zope 2.6.x in my Redhat 7.3 server. It simply don't start. I use the source distribution, the binary distribution and a rpm packages. The Redhat runs fine (it has a Oracle database, Samba, a IMAP server... whithout problems), and I installed the correct Python (version 2.1.3). The Zope 2.5.1 runs fine in this system, but I want use Plone and it needs Zope 2.6.1. Thanks! --