--- gnome-power-manager-2.29.91/applets/brightness/brightness-applet.c	2010-01-28 00:26:29.000000000 +0800
+++ gnome-power-manager-2.28.1/applets/brightness/brightness-applet.c	2009-10-19 17:23:41.000000000 +0800
@@ -18,7 +18,7 @@
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  */
 
 #ifdef HAVE_CONFIG_H
@@ -595,6 +595,7 @@
 
 	/* window */
 	applet->popup = gtk_window_new (GTK_WINDOW_POPUP);
+	GTK_WIDGET_UNSET_FLAGS (applet->popup, GTK_TOPLEVEL);
 	gtk_window_set_type_hint (GTK_WINDOW(applet->popup), GDK_WINDOW_TYPE_HINT_UTILITY);
 	gtk_widget_set_parent (applet->popup, GTK_WIDGET(applet));
 	gtk_container_add (GTK_CONTAINER(applet->popup), frame);
