XDMCP not showing login dialog

[es]

hello all and my apologize if this is not the right list to ask questions!
I really need some help to connect via XDMCP I have no login dialog 
after X is started up.
I'm using mandrake 9.2 to connect to a xorg 6.7.0-r2 and KDE3.3.0 on gentoo
I have folowed the HOWTO but I have no login screen after X is 
succesfully started. I have googled but not found anything usefull:(

The things I checked/made are:
1) ! DisplayManager.requestPort:     0 is commented out in 
/etc/X11/xdm/xdm-config
2)  In /etc/X11/xdm/Xaccess I have uncommented:  *     # any host can 
get a login window
3) xdm service is restarted succesfully
4) Firewall is disabled to making tests
5) on "client" X -broadcast :1   shows up a blue screen with the mouse X 
cursor but no login.


Running kde via ssh works but it's not what I was really looking for. I 
need a full X session.

thanks in advance
Eli