I have 2 workstations running Centos 5. On the one I have Netprobe running without any problems. On the other Netprobe starts but as soon as I try to connect from a remote PC to the website It opens everything except for the graphs and then netprobe crash with a "Gtk-Warning could not open display" in the log. Both are running in runlevel 3. When I do start the X server it runs fine. There is a lot more installed on the server that works so not sure what would cause this? Any ideas?