FreeNX -- nxclient not working with gnome and nis

Dear all,
I hope there is someone who has allready fixed this:
I’m running a couple of system with opensuse and FreeNX. from 11.4 till 12.3
I want to offer KDE and gnome for using nxclient from windows stations.
KDE just rans fine
gnome does not work and terminates with a small notice: “Could not connect to session bus: Failed to connect to socket /tmp/dbus-hABlISnI8R: Connection refused”
In the log of the nxserver I can see that userauthentication passed through already and this only happend to NIS user. Local users can use gnome
NIS user can use KDE and e.g. a terminal but not gnome
local users can use KDE, terminal AND gnome.

What do I have to change to get gnome running.


logentry from messages:
2013-08-22T11:25:09.524992+02:00 egal sshd[823]: Accepted publickey for nx from 130.143.45.100 port 41873 ssh2
2013-08-22T11:25:09.527224+02:00 egal systemd-logind[750]: New session 935 of user nx.
2013-08-22T11:25:10.448207+02:00 egal sshd[949]: Accepted keyboard-interactive/pam for dep15999 from 127.0.0.1 port 59174 ssh2
2013-08-22T11:25:10.482433+02:00 egal systemd-logind[750]: New session 936 of user dep15999.
2013-08-22T11:25:15.174015+02:00 egal gnome-session[1497]: WARNING: Could not make bus activated clients aware of DISPLAY=:1001 environment variable: Failed to connect to socket /tmp/dbus-hABlISnI8R: Connection refused
2013-08-22T11:25:15.191718+02:00 egal gnome-session[1497]: WARNING: Could not make bus activated clients aware of GNOME_DESKTOP_SESSION_ID=this-is-deprecated environment variab