SecurityPolicy file?
If your installation of XFree86 3.3/3.3.3 is not complete you may see the following error message when starting an X server: error opening security policy file /usr/X11R6/lib/X11/xserver/SecurityPolicy This is a only a warning message, and is mostly harmless. If your server is failing to startup, this is not the reason. Check the other messages. The file being referred to is included in the Xlib.tgz part of the XFree86 binary distributions produced by The XFree86 Project.