
From "X -version"

Ubuntu:
	X Window System Version 6.8.2 (Ubuntu 6.8.2-77 20051010174523 root@vernadsky.buildd)
	Release Date: 9 February 2005
	X Protocol Version 11, Revision 0, Release 6.8.2
	Build Operating System: Linux 2.6.10 i686 [ELF] 
	Current Operating System: Linux fuji.sifter.org 2.6.12-10-386 #1 Sat Mar 11 16:13:17 UTC 2006 i686
	Build Date: 10 October 2005

Debian:
	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 gary 2.6.16-1-686 #2 Sat Apr 15 20:45:20 UTC 2006 i686
	Build Date: 16 March 2006

