diff --git a/collects/mred/private/wxtop.ss b/collects/mred/private/wxtop.ss
index f24b14b6d0..dc802f7711 100644
--- a/collects/mred/private/wxtop.ss
+++ b/collects/mred/private/wxtop.ss
@@ -31,14 +31,21 @@
 	(wx:display-size xb yb (if full-screen? 1 0))
 	(values (unbox xb) (unbox yb)))))
 
-  (define (get-display-left-top-inset)
-    (let ([xb (box 0)]
-	  [yb (box 0)])
-      (wx:display-origin xb yb)
-      (values (unbox xb) (unbox yb))))
+  (define get-display-left-top-inset
+    (opt-lambda ([advisory? #f])
+      (let ([xb (box 0)]
+	    [yb (box 0)])
+	(wx:display-origin xb yb advisory?)
+	(values (unbox xb) (unbox yb)))))
   
-  (define top-x 1)
-  (define top-y 1)
+  (define-values (init-top-x init-top-y)
+    (let-values ([(x y) (get-display-left-top-inset #f)]
+		 [(x2 y2) (get-display-left-top-inset #t)])
+      (values (+ 1 (- x2 x))
+	      (+ 1 (- y2 y)))))
+
+  (define top-x init-top-x)
+  (define top-y init-top-y)
   (define top-level-windows (make-hash-table 'weak))
   
   ;; make-top-container%: adds the necessary functionality to wx:frame% and 
@@ -340,8 +347,8 @@
 					     (values top-y #f)
 					     (values (max 0 (- sh h 20)) #t))])
 	       (move x y)
-	       (set! top-x (if x-reset? 0 (+ top-x 10)))
-	       (set! top-y (if y-reset? 0 (+ top-y 20)))))
+	       (set! top-x (if x-reset? init-top-x (+ top-x 10)))
+	       (set! top-y (if y-reset? init-top-y (+ top-y 20)))))
 	   (if on?
 	       (hash-table-put! top-level-windows this #t)
 	       (hash-table-remove! top-level-windows this))
diff --git a/src/mred/wxs/wxs_glob.cxx b/src/mred/wxs/wxs_glob.cxx
index b98226f382..7f579161bf 100644
--- a/src/mred/wxs/wxs_glob.cxx
+++ b/src/mred/wxs/wxs_glob.cxx
@@ -59,6 +59,15 @@ static void wxCancelQuit()
 #endif
 }
 
+static void wxsDisplayOrigin(int *x, int *y, Bool flags = FALSE)
+{
+#ifdef wx_mac
+  wxDisplayOrigin(x, y, flags);
+#else
+  wxDisplayOrigin(x, y);
+#endif	
+}
+
 #ifndef wxGETDIR
 # define wxGETDIR 0
 #endif
@@ -480,7 +489,7 @@ static Scheme_Object *wxsGlobalwxStripMenuCodes_Scheme(int n,  Scheme_Object *p[
   return WITH_REMEMBERED_STACK(objscheme_bundle_string((char *)r));
 }
 
-static Scheme_Object *wxsGlobalwxDisplayOrigin(int n,  Scheme_Object *p[])
+static Scheme_Object *wxsGlobalwxsDisplayOrigin(int n,  Scheme_Object *p[])
 {
   WXS_USE_ARGUMENT(n) WXS_USE_ARGUMENT(p)
   REMEMBER_VAR_STACK();
@@ -488,6 +497,7 @@ static Scheme_Object *wxsGlobalwxDisplayOrigin(int n,  Scheme_Object *p[])
   int* x0 = &_x0;
   int _x1;
   int* x1 = &_x1;
+  Bool x2;
   Scheme_Object *sbox_tmp;
 
   SETUP_VAR_STACK_REMEMBERED(1);
@@ -496,9 +506,13 @@ static Scheme_Object *wxsGlobalwxDisplayOrigin(int n,  Scheme_Object *p[])
   
       *x0 = (sbox_tmp = WITH_VAR_STACK(objscheme_unbox(p[0+0], "display-origin")), WITH_VAR_STACK(objscheme_unbundle_integer(sbox_tmp, "display-origin"", extracting boxed argument")));
       *x1 = (sbox_tmp = WITH_VAR_STACK(objscheme_unbox(p[0+1], "display-origin")), WITH_VAR_STACK(objscheme_unbundle_integer(sbox_tmp, "display-origin"", extracting boxed argument")));
+  if (n > (0+2)) {
+    x2 = WITH_VAR_STACK(objscheme_unbundle_bool(p[0+2], "display-origin"));
+  } else
+    x2 = FALSE;
 
   
-  WITH_VAR_STACK(wxDisplayOrigin(x0, x1));
+  WITH_VAR_STACK(wxsDisplayOrigin(x0, x1, x2));
 
   
   if (n > (0+0))
@@ -762,7 +776,7 @@ void objscheme_setup_wxsGlobal(Scheme_Env *env)
   WITH_VAR_STACK(scheme_install_xc_global("get-resource", functmp, env));
   functmp = WITH_VAR_STACK(scheme_make_prim_w_arity((Scheme_Prim *)wxsGlobalwxStripMenuCodes_Scheme, "label->plain-label", 1, 1));
   WITH_VAR_STACK(scheme_install_xc_global("label->plain-label", functmp, env));
-  functmp = WITH_VAR_STACK(scheme_make_prim_w_arity((Scheme_Prim *)wxsGlobalwxDisplayOrigin, "display-origin", 2, 2));
+  functmp = WITH_VAR_STACK(scheme_make_prim_w_arity((Scheme_Prim *)wxsGlobalwxsDisplayOrigin, "display-origin", 2, 3));
   WITH_VAR_STACK(scheme_install_xc_global("display-origin", functmp, env));
   functmp = WITH_VAR_STACK(scheme_make_prim_w_arity((Scheme_Prim *)wxsGlobalwxDisplaySize, "display-size", 3, 3));
   WITH_VAR_STACK(scheme_install_xc_global("display-size", functmp, env));
diff --git a/src/mred/wxs/wxs_glob.xc b/src/mred/wxs/wxs_glob.xc
index 97f32eacac..4185f95bca 100644
--- a/src/mred/wxs/wxs_glob.xc
+++ b/src/mred/wxs/wxs_glob.xc
@@ -33,6 +33,15 @@ static void wxCancelQuit()
 #endif
 }
 
+static void wxsDisplayOrigin(int *x, int *y, Bool flags = FALSE)
+{
+#ifdef wx_mac
+  wxDisplayOrigin(x, y, flags);
+#else
+  wxDisplayOrigin(x, y);
+#endif	
+}
+
 #ifndef wxGETDIR
 # define wxGETDIR 0
 #endif
@@ -112,7 +121,7 @@ extern class wxDialogBox *objscheme_unbundle_wxDialogBox(Scheme_Object *obj, con
 @ "hide-cursor" : void wxHideCursor()
 @ "bell" : void wxBell();
 @ "display-size" : void wxDisplaySize(int*,int*,int);
-@ "display-origin" : void wxDisplayOrigin(int*,int*);
+@ "display-origin" : void wxsDisplayOrigin(int*,int*,bool=FALSE);
 
 @ "label->plain-label" : string wxStripMenuCodes_Scheme(string);
 
diff --git a/src/wxmac/include/base/wb_gdi.h b/src/wxmac/include/base/wb_gdi.h
index abe9520b6e..cfbf001b18 100644
--- a/src/wxmac/include/base/wb_gdi.h
+++ b/src/wxmac/include/base/wb_gdi.h
@@ -371,7 +371,7 @@ extern Bool wxColourDisplay(void);
 extern int wxDisplayDepth(void);
 
 extern void wxDisplaySize(int *width, int *height, int flags = 0);
-extern void wxDisplayOrigin(int *x, int *y);
+extern void wxDisplayOrigin(int *x, int *y, int flags = 0);
 
 extern void wxSetCursor(wxCursor *cursor);
 
diff --git a/src/wxmac/src/mac/wx_gdi.cc b/src/wxmac/src/mac/wx_gdi.cc
index 719f7a17fc..2051cd1a41 100644
--- a/src/wxmac/src/mac/wx_gdi.cc
+++ b/src/wxmac/src/mac/wx_gdi.cc
@@ -874,21 +874,27 @@ void wxDisplaySize(int *width, int *height, int flags)
   BitMap screenBits;
   int mbh;
 
-  GetQDGlobalsScreenBits(&screenBits);
-  *width = screenBits.bounds.right - screenBits.bounds.left;
-  if (flags)
-    mbh = 0;
-  else
-    mbh = wxMenuBarHeight;
-  *height = screenBits.bounds.bottom - screenBits.bounds.top - mbh;
+  if (!flags) {
+    Rect r;
+    GetAvailableWindowPositioningBounds(NULL, &r);
+    *width = (r.right - r.left);
+    *height = (r.bottom - wxMenuBarHeight);
+  } else {
+    GetQDGlobalsScreenBits(&screenBits);
+    *width = screenBits.bounds.right - screenBits.bounds.left;
+    *height = screenBits.bounds.bottom - screenBits.bounds.top;
+  }
 }
 
-void wxDisplayOrigin(int *x, int *y)
+void wxDisplayOrigin(int *x, int *y, int flags)
 {
-  int mbh;
-  *x = 0;
-  mbh = wxMenuBarHeight;
-  *y = mbh;
+  if (flags) {
+    Rect r;
+    GetAvailableWindowPositioningBounds(NULL, &r);
+    *x = r.left;
+  } else
+    *x = 0;
+  *y = wxMenuBarHeight;
 }
 
 static void FreeGWorld(GWorldPtr x_pixmap)