diff --git a/lib/OpenLayers/Control/OverviewMap.js b/lib/OpenLayers/Control/OverviewMap.js
index 11ac354330..619912408d 100644
--- a/lib/OpenLayers/Control/OverviewMap.js
+++ b/lib/OpenLayers/Control/OverviewMap.js
@@ -157,7 +157,7 @@ OpenLayers.Control.OverviewMap = OpenLayers.Class(OpenLayers.Control, {
             this.handlers.drag.destroy();
         }
 
-        this.mapDiv.removeChild(this.extentRectangle);
+        this.ovmap && this.ovmap.viewPortDiv.removeChild(this.extentRectangle);
         this.extentRectangle = null;
 
         if (this.rectEvents) {
@@ -229,7 +229,6 @@ OpenLayers.Control.OverviewMap = OpenLayers.Class(OpenLayers.Control, {
         this.extentRectangle.style.position = 'absolute';
         this.extentRectangle.style.zIndex = 1000;  //HACK
         this.extentRectangle.className = this.displayClass+'ExtentRectangle';
-        this.mapDiv.appendChild(this.extentRectangle);
 
         this.element.appendChild(this.mapDiv);  
 
@@ -490,6 +489,7 @@ OpenLayers.Control.OverviewMap = OpenLayers.Class(OpenLayers.Control, {
                         {controls: [], maxResolution: 'auto', 
                          fallThrough: false}, this.mapOptions);
         this.ovmap = new OpenLayers.Map(this.mapDiv, options);
+        this.ovmap.viewPortDiv.appendChild(this.extentRectangle);
         
         // prevent ovmap from being destroyed when the page unloads, because
         // the OverviewMap control has to do this (and does it).
diff --git a/lib/OpenLayers/Control/PanZoomBar.js b/lib/OpenLayers/Control/PanZoomBar.js
index eb1f544e18..567e2ce938 100644
--- a/lib/OpenLayers/Control/PanZoomBar.js
+++ b/lib/OpenLayers/Control/PanZoomBar.js
@@ -286,9 +286,7 @@ OpenLayers.Control.PanZoomBar = OpenLayers.Class(OpenLayers.Control.PanZoom, {
         if (!OpenLayers.Event.isLeftClick(evt)) {
             return;
         }
-        var y = evt.xy.y;
-        var top = OpenLayers.Util.pagePosition(evt.object)[1];
-        var levels = (y - top)/this.zoomStopHeight;
+        var levels = evt.xy.y / this.zoomStopHeight;
         if(this.forceFixedZoomLevel || !this.map.fractionalZoom) {
             levels = Math.floor(levels);
         }