On Fri, 10 Dec 2004, Eric Tanguy wrote: > Dec 10 21:04:11 bureau xscreensaver(pam_unix)[4202]: authentication > failure; logname= uid=500 euid=500 tty=:0.0 ruser= rhost= user=tanguy > Dec 10 21:04:14 bureau xscreensaver(pam_unix)[4202]: authentication > failure; logname= uid=500 euid=500 tty=:0.0 ruser= rhost= user=root > Dec 10 21:27:32 bureau syslogd 1.4.1: restart. It could some 'dri' issue - Perhaps the reboot happens when the xscreensaver hits some 3d screensavers. You could try commenting out the 'dri' line in /etc/X11/xorg.conf and see if the problem goes away. Satish