On Mon, Feb 13, 2006 at 10:38:39 +0000, Michael Heldebrant wrote: > I couldn't get a backtrace though unfortunately: > > Attaching to program: /usr/X11R6/bin/Xorg, process 4439 > ptrace: Operation not permitted. > Xorg runs as root (through the setuid wrapper /usr/bin/X11/X), so you need to be root to attach to it. Cheers, Julien