All, I have xscreensaver 4.21 problem with Fedora Core 5 kernel 2.6.11-1.1369_FC4: xscreensaver-demo is running as user "root" on host 'localhost.localdomain" But the xscreensaver manageing display "0:0" is running as user "nobody" on host "localhost.localdomain". Since they are different users, they won't be reading/writing the same ~./.xscreensaver file, so xscreensaver-demo isn't going to work right. You should either re-run xscreensaver-demo as "nobody", or re-run xscreensaver as "root" I have tried to kill the processes and restart the xscreensaver daemon as root. I have executed xhost + localhost command. I would like to be able to use the screen saver. Any ideas? Thanks, Mike