X: warning; process set to priority 0 instead of requested priority -10

This is a pre-release version of XFree86, and is not supported in any
way.  Bugs may be reported to XFree86@XFree86.Org and patches submitted
to fixes@XFree86.Org.  Before reporting bugs in pre-release versions,
please check the latest version in the XFree86 CVS repository
(http://www.XFree86.Org/cvs)

XFree86 Version 4.2.1.1 (Debian 4.2.1-13.backports.org.1 20031119004253 nobse@debian.org) / X Window System
(protocol Version 11, revision 0, vendor release 6600)
Release Date: 18 October 2002
	If the server is older than 6-12 months, or if your card is
	newer than the above date, look for a newer version before
	reporting problems.  (See http://www.XFree86.Org/)
Build Operating System: Linux 2.4.22-ac4 i686 [ELF] 
Module Loader present
Markers: (--) probed, (**) from config file, (==) default setting,
         (++) from command line, (!!) notice, (II) informational,
         (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/XFree86.0.log", Time: Fri Dec  5 19:02:57 2003
(==) Using config file: "/etc/X11/XF86Config-4"
(EE) RADEON(0): No valid mode found for this DFP/LCD
(EE) Screen(s) found, but none have a usable configuration.

Fatal server error:
no screens found

When reporting a problem related to a server crash, please send
the full server output, not just the last messages.
This can be found in the log file "/var/log/XFree86.0.log".
Please report problems to debian-x@lists.debian.org.

X connection to :0.0 broken (explicit kill or server shutdown).