I'm SSH'ing into a remote server. X11 Forwarding appears to be working fine, as does sudo. For instance: [box_a]$ ssh -X box_b Last login: Sun Apr 22 11:22:39 2007 from box_a [box_b]$ sudo xev And the X11 event tester pops up right away, running as root. However, when I try to run virt-manager or system-config-lvm, I get an error: [box_b]$ sudo virt-manager X11 connection rejected because of wrong authentication. The application 'virt-manager.py ' lost its connection to the display localhost:10.0; most likely the X server was shut down or you killed/destroyed the application. I'm thinking that an RPM install failed or I don't have an RPM I need. Any guesses which one it might be? Is this perhaps a consolehelper problem? Additional Information: * box_b is a fairly minimal Fedora Core 6 install with packages installed only as they were required. I wouldn't be surprised if 'yum groupinstall "X Windows System"' would make this work, but why should I have to install the whole kitchen sink? * box_b does have the 'xorg-x11-xauth' package installed. * I can ssh from box_a to box_c and "sudo virt-manager" works fine, where box_c is a more "kitchen-sink" install of Fedora Core 6 (includes a GNOME desktop and lots of packages) * I've inspected and recreated the sudoers file on box_b, only uncommenting the line that allows people in group wheel to run all commands without a password * "rpm -aV" returns tons of prelink errors, so it's tough to see what of the OS has been changed on disk Other Possibly Helpful Background Information: How to use consolehelper: <a href="http://www.linuxnovice.org/main_tips.php3?VIEW=VIEW&t_id=127">http://www.linuxnovice.org/main_tips.php3?VIEW=VIEW&t_id=127 </a> consolehelper & sudo 1: <a href="http://lists.linuxcoding.com/rhl/2004/msg03759.html">http://lists.linuxcoding.com/rhl/2004/msg03759.html</a> consolehelper & sudo 2: <a href="http://lists.linuxcoding.com/rhl/2004/msg03576.html"> http://lists.linuxcoding.com/rhl/2004/msg03576.html</a> -- Adam Monsen