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diff --git a/docs/userguide b/docs/userguide
index 184848aa..7db9c4e7 100644
--- a/docs/userguide
+++ b/docs/userguide
@@ -1,7 +1,7 @@
 i3 User’s Guide
 ===============
 Michael Stapelberg <michael+i3@stapelberg.de>
-August 2011
+September 2011
 
 This document contains all the information you need to configure and use the i3
 window manager. If it does not, please contact us on IRC (preferred) or post your
@@ -712,6 +712,31 @@ force_focus_wrapping <yes|no>
 force_focus_wrapping yes
 ------------------------
 
+=== Forcing Xinerama
+
+As explained in-depth in <http://i3wm.org/docs/multi-monitor.html>, some X11
+video drivers (especially the nVidia binary driver) only provide support for
+Xinerama instead of RandR. In such a situation, i3 must be told to use the
+inferior Xinerama API explicitly and therefore don’t provide support for
+reconfiguring your screens on the fly (they are read only once on startup and
+that’s it).
+
+For people who do cannot modify their +~/.xsession+ to add the
++--force-xinerama+ commandline parameter, a configuration option is provided:
+
+*Syntax*:
+-----------------------
+force_xinerama <yes|no>
+-----------------------
+
+*Example*:
+------------------
+force_xinerama yes
+------------------
+
+Also note that your output names are not descriptive (like +HDMI1+) when using
+Xinerama, instead they are counted up, starting at 0: +xinerama-0+, +xinerama-1+, …
+
 == List of commands
 
 Commands are what you bind to specific keypresses. You can also issue commands
@@ -754,6 +779,8 @@ class::
 	Compares the window class (the second part of WM_CLASS)
 instance::
 	Compares the window instance (the first part of WM_CLASS)
+window_role::
+	Compares the window role (WM_WINDOW_ROLE).
 id::
 	Compares the X11 window ID, which you can get via +xwininfo+ for example.
 title::
@@ -764,9 +791,9 @@ con_id::
 	Compares the i3-internal container ID, which you can get via the IPC
 	interface. Handy for scripting.
 
-The criteria +class+, +instance+, +title+ and +mark+ are actually regular
-expressions (PCRE). See +pcresyntax(3)+ or +perldoc perlre+ for information on
-how to use them.
+The criteria +class+, +instance+, +role+, +title+ and +mark+ are actually
+regular expressions (PCRE). See +pcresyntax(3)+ or +perldoc perlre+ for
+information on how to use them.
 
 === Splitting containers