diff --git a/gnome-shell-2.91.91-multihead_alt_tab.patch b/gnome-shell-2.91.91-multihead_alt_tab.patch
new file mode 100644
index 0000000..b68b52f
--- /dev/null
+++ b/gnome-shell-2.91.91-multihead_alt_tab.patch
@@ -0,0 +1,24 @@
+From 3944df1bd24b7295180d33dba9ee7d531c1dddd4 Mon Sep 17 00:00:00 2001
+From: Maxim Ermilov <zaspire@rambler.ru>
+Date: Tue, 08 Mar 2011 17:15:20 +0000
+Subject: altTab: fix incorrect positioning with multiple monitors
+
+Calculate the position of the alt-tab popup correctly when primary.x != 0.
+This was accidentally broken by 614176b2691981c982e77b8a04b01ff02a670857
+https://bugzilla.gnome.org/show_bug.cgi?id=644206
+---
+diff --git a/js/ui/altTab.js b/js/ui/altTab.js
+index 44fd39d..46ab9a3 100644
+--- a/js/ui/altTab.js
++++ b/js/ui/altTab.js
+@@ -87,7 +87,7 @@ AltTabPopup.prototype = {
+         let [childMinHeight, childNaturalHeight] = this._appSwitcher.actor.get_preferred_height(primary.width - hPadding);
+         let [childMinWidth, childNaturalWidth] = this._appSwitcher.actor.get_preferred_width(childNaturalHeight);
+         childBox.x1 = Math.max(primary.x + leftPadding, primary.x + Math.floor((primary.width - childNaturalWidth) / 2));
+-        childBox.x2 = Math.min(primary.width - hPadding, childBox.x1 + childNaturalWidth);
++        childBox.x2 = Math.min(primary.x + primary.width - hPadding, childBox.x1 + childNaturalWidth);
+         childBox.y1 = primary.y + Math.floor((primary.height - childNaturalHeight) / 2);
+         childBox.y2 = childBox.y1 + childNaturalHeight;
+         this._appSwitcher.actor.allocate(childBox, flags);
+--
+cgit v0.8.3.4
diff --git a/gnome-shell.spec b/gnome-shell.spec
index 328fd69..fb9dd53 100644
--- a/gnome-shell.spec
+++ b/gnome-shell.spec
@@ -1,13 +1,15 @@
 Name:           gnome-shell
 Version:        2.91.91
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        Window management and application launching for GNOME
 
 Group:          User Interface/Desktops
 License:        GPLv2+
 URL:            http://live.gnome.org/GnomeShell
-#VCS:		git:git://git.gnome.org/gnome-shell
+#VCS:           git:git://git.gnome.org/gnome-shell
 Source0:        http://ftp.gnome.org/pub/GNOME/sources/gnome-shell/2.91/%{name}-%{version}.tar.bz2
+# patch from https://bugzilla.gnome.org/show_bug.cgi?id=644206
+Patch0:         gnome-shell-2.91.91-multihead_alt_tab.patch
 
 %define clutter_version 1.4.0
 %define gobject_introspection_version 0.10.1
@@ -71,6 +73,7 @@ easy to use experience.
 
 %prep
 %setup -q
+%patch0 -p1 -b .multihead_alt_tab
 
 %build
 (if ! test -x configure; then NOCONFIGURE=1 ./autogen.sh; fi;
@@ -133,6 +136,9 @@ gconftool-2 --makefile-install-rule \
 glib-compile-schemas --allow-any-name %{_datadir}/glib-2.0/schemas ||:
 
 %changelog
+* Wed Mar 16 2011 Michel Salim <salimma@fedoraproject.org> - 2.91.91-2
+- Fix alt-tab behavior on when primary display is not leftmost (# 683932)
+
 * Tue Mar  8 2011 Owen Taylor <otaylor@redhat.com> - 2.91.91-1
 - Update to 2.91.91