Thanks you very much for all your instant replies. The problem is already almost solved. - ssh is not really an option as we are still running HP-UX 10.20, and only have old Hp "cc" compilers which do not compile ssh. The problem was resolving the host name in the DISPLAY variable: I use a line like ip-mumber suse.my_domain.de suse in the /etc/hosts file on hpux. This allows me to do "ping suse", but "telnet suse" fails. So, using "telnet ip-number" or "export DSIPLAY=ip-number:0.0" works. I still don't understand why, but knowing how to avoid the problem is already a step in the right direction. Thannks agains Malte -- Malte Neumann Institute of Structural Mechanics, University of Stuttgart, Germany http://www.ibb.uni-stuttgart.de/members/neumann/ -- Check the headers for your unsubscription address For additional commands send e-mail to suse-linux-e-help@suse.com Also check the archives at http://lists.suse.com Please read the FAQs: suse-linux-e-faq@suse.com