Unable to XDMCP connect after upgrade

[Franklin Petersen crown com]

I used RedHat 5.2 before and used a product called Reflection X to do a
direct XDMCP connect to my Linux servers.
After the upgrade to 6.0 with GNOME and Enlightenment, I can no longer do
this, and don't know what's wrong.

The system starts in runlevel 5, as before.  I have made no changes, it was
a standard upgrade.  But Reflection claims my hosts is not runnign an XDMCP
program.

Any help?

Please copy responses to franklin.petersen@crown.com

Thanks,
Frank