diff --git a/collects/scribblings/gui/frame-class.scrbl b/collects/scribblings/gui/frame-class.scrbl
index 0b58bdff..64e085e2 100644
--- a/collects/scribblings/gui/frame-class.scrbl
+++ b/collects/scribblings/gui/frame-class.scrbl
@@ -95,7 +95,8 @@ some platforms:
  shares the focus with an active non-floating frame; when this style
  is combined with @scheme['no-caption], then showing the frame does
  not cause the keyboard focus to shift to the window, and under X,
- clicking the frame does not move the focus}
+ clicking the frame does not move the focus; under Windows, a floating
+ frame has no taskbar button}
 
  @item{@scheme['metal] --- draws the frame with a brushed-metal
  background (Mac OS X); this style is ignored when
diff --git a/collects/scribblings/gui/window-intf.scrbl b/collects/scribblings/gui/window-intf.scrbl
index 94f9cae8..e7ec2963 100644
--- a/collects/scribblings/gui/window-intf.scrbl
+++ b/collects/scribblings/gui/window-intf.scrbl
@@ -36,6 +36,11 @@ All @scheme[window<%>] classes accept the following named instantiation
 @index["global coordinates"]{Converts} local window coordinates to
 screen coordinates.
 
+Under Mac OS X, the screen coordinates start with @math{(0, 0)} at the
+upper left of the menu bar. In contrast, @xmethod[top-level-window<%>
+move] considers @math{(0, 0)} to be below the menu bar. See also
+@scheme[get-display-left-top-inset].
+
 }
 
 @defmethod[(enable [enable? any/c])
@@ -456,7 +461,8 @@ Enqueues an event to repaint the window.
                    (integer-in -10000 10000))]{
 
 @index["global coordinates"]{Converts} global coordinates to window
-local coordinates.
+ local coordinates. See also @scheme[client->screen] for information
+ on screen coordinates.
 
 }