diff --git a/shell/view/frame/ActivitiesBox.py b/shell/view/frame/ActivitiesBox.py
index 034ccabd..8cd4e876 100644
--- a/shell/view/frame/ActivitiesBox.py
+++ b/shell/view/frame/ActivitiesBox.py
@@ -24,12 +24,14 @@ from sugar.graphics.iconbutton import IconButton
 from sugar import profile
 
 from model import bundleregistry
+from frameinvoker import FrameCanvasInvoker
 
 class ActivityButton(IconButton):
     def __init__(self, activity):
         IconButton.__init__(self, icon_name=activity.get_icon())
 
         palette = Palette(activity.get_name())
+        palette.props.invoker = FrameCanvasInvoker(self)
         palette.set_group_id('frame')
         self.set_palette(palette)
 
diff --git a/shell/view/frame/Makefile.am b/shell/view/frame/Makefile.am
index 09ab303c..ff2bff35 100644
--- a/shell/view/frame/Makefile.am
+++ b/shell/view/frame/Makefile.am
@@ -4,6 +4,7 @@ sugar_PYTHON =				\
 	ActivitiesBox.py		\
 	clipboardbox.py			\
 	clipboardpanelwindow.py		\
+	frameinvoker.py			\
 	FriendsBox.py			\
 	eventarea.py			\
 	frame.py			\
diff --git a/shell/view/frame/frame.py b/shell/view/frame/frame.py
index 3f3367b3..5210f57a 100644
--- a/shell/view/frame/frame.py
+++ b/shell/view/frame/frame.py
@@ -336,3 +336,4 @@ class Frame(object):
 
     def notify_key_release(self):
         self._key_listener.key_release()
+
diff --git a/sugar/graphics/canvasicon.py b/sugar/graphics/canvasicon.py
index 9d9fc833..c7e318bf 100644
--- a/sugar/graphics/canvasicon.py
+++ b/sugar/graphics/canvasicon.py
@@ -373,7 +373,8 @@ class CanvasIcon(hippo.CanvasBox, hippo.CanvasItem):
     
     def set_palette(self, palette):
         self._palette = palette
-        self._palette.props.invoker = CanvasInvoker(self)
+        if not self._palette.props.invoker:
+            self._palette.props.invoker = CanvasInvoker(self)
 
     def set_tooltip(self, text):
         self.set_palette(Palette(text))
diff --git a/sugar/graphics/palette.py b/sugar/graphics/palette.py
index dc51fe59..1a019b82 100644
--- a/sugar/graphics/palette.py
+++ b/sugar/graphics/palette.py
@@ -62,6 +62,7 @@ class Palette(gobject.GObject):
     def __init__(self, label, accel_path=None):
         gobject.GObject.__init__(self)
 
+        self._invoker = None
         self._group_id = None
         self._up = False
         self._position = self.AUTOMATIC
@@ -151,6 +152,14 @@ class Palette(gobject.GObject):
         else:
             raise AssertionError
 
+    def do_get_property(self, pspec):
+        if pspec.name == 'invoker':
+            return self._invoker
+        elif pspec.name == 'position':
+            return self._position
+        else:
+            raise AssertionError
+
     def _get_position(self, alignment):
         # Invoker: x, y, width and height
         inv_rect = self._invoker.get_rect()
@@ -185,12 +194,12 @@ class Palette(gobject.GObject):
 
     def _in_screen(self, x, y):
         [width, height] = self._menu.size_request()
-        screen_width = gtk.gdk.screen_width() - units.grid_to_pixels(1)
-        screen_height = gtk.gdk.screen_height() - units.grid_to_pixels(1)
+        screen_area = self._invoker.get_screen_area()
 
-        return x + width <= screen_width and \
-               y + height <= screen_height and \
-               x >= units.grid_to_pixels(1) and y >= units.grid_to_pixels(1)
+        return x >= screen_area.x and \
+               y >= screen_area.y and \
+               x + width <= screen_area.width and \
+               y + height <= screen_area.height
 
     def _get_automatic_position(self):
         alignments = [ _BOTTOM_LEFT,  _BOTTOM_RIGHT,
@@ -203,6 +212,9 @@ class Palette(gobject.GObject):
             if self._in_screen(x, y):
                 return x, y
 
+        # We fail
+        return (0, 0)
+
     def _show(self):
         x = y = 0
 
@@ -381,6 +393,11 @@ class Invoker(object):
         for listener in self._listeners:
             listener.invoker_mouse_leave()
 
+    def get_screen_area(self):
+        width = gtk.gdk.screen_width()
+        height = gtk.gdk.screen_height()
+        return gtk.gdk.Rectangle(0, 0, width, height)
+
 class WidgetInvoker(Invoker):
     def __init__(self, widget):
         Invoker.__init__(self)