casafa@localhost:~$ dpkg -l | grep 'xserver-xorg' | head -n 1
ii  xserver-xorg                     7.0.18                     the X.Org X server
casafa@localhost:~$ Xorg -version
 
X Window System Version 7.0.0
Release Date: 21 December 2005
X Protocol Version 11, Revision 0, Release 7.0
Build Operating System:Linux 2.6.12-1-686 i686
Current Operating System: Linux localhost 2.6.16.5 #10 PREEMPT Fri May 12 01:04:25 CEST 2006 i686
Build Date: 16 March 2006
        Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
Module Loader present