openssh 1.2.1. pre25 and X11 forward

[Noel Koethe]

Hello,

I moved my ssh servers to openssh and installed:
openssh-1.2.1pre25 via .rpm

My problem is that X11 forwarding doesn't work.

-/etc/ssh/sshd_config
X11Forwarding yes
X11DisplayOffset 10

I start sshd with defaul port and can connect to the server
and then:

$ xosview 
X11 connection rejected because of wrong authentication.
X connection to servername.de:10.0 broken (explicit kill or
server shutdown).

Sorry but there is no hint or FAQ for that problem on www.openssh.org.

Thanks for help.

-- 
Noch einen schönen Tag

        Noel Köthe