diff --git a/src/popover/popover-animation-from-top.jsx b/src/popover/popover-animation-from-top.jsx
index 339f2857d4364d..d9e338a455d397 100644
--- a/src/popover/popover-animation-from-top.jsx
+++ b/src/popover/popover-animation-from-top.jsx
@@ -23,7 +23,7 @@ function getStyles(props, state) {
       opacity: open ? 1 : 0,
       transform: open ? 'scaleY(1)' : 'scaleY(0)',
       transformOrigin: `${horizontal} ${targetOrigin.vertical}`,
-      position: 'fixed',
+      position: 'absolute',
       zIndex: zIndex.popover,
       transition: Transitions.easeOut('450ms', ['transform', 'opacity']),
       maxHeight: '100%',
diff --git a/src/popover/popover-default-animation.jsx b/src/popover/popover-default-animation.jsx
index 86a8bf325a0017..5d9b526dd1dcaf 100644
--- a/src/popover/popover-default-animation.jsx
+++ b/src/popover/popover-default-animation.jsx
@@ -23,7 +23,7 @@ function getStyles(props, state) {
       opacity: open ? 1 : 0,
       transform: open ? 'scale(1, 1)' : 'scale(0, 0)',
       transformOrigin: `${horizontal} ${targetOrigin.vertical}`,
-      position: 'fixed',
+      position: 'absolute',
       zIndex: zIndex.popover,
       transition: Transitions.easeOut('250ms', ['transform', 'opacity']),
       maxHeight: '100%',
diff --git a/src/popover/popover.jsx b/src/popover/popover.jsx
index 604f6223c5ed5e..9b40939ea24865 100644
--- a/src/popover/popover.jsx
+++ b/src/popover/popover.jsx
@@ -243,8 +243,8 @@ const Popover = React.createClass({
     const a = {
       top: rect.top,
       left: rect.left,
-      width: el.offsetWidth,
-      height: el.offsetHeight,
+      width: rect.width,
+      height: rect.height,
     };
 
     a.right = rect.right || a.left + a.width;
diff --git a/src/render-to-layer.jsx b/src/render-to-layer.jsx
index 460b5108fc863a..a532a3179d19e8 100644
--- a/src/render-to-layer.jsx
+++ b/src/render-to-layer.jsx
@@ -2,6 +2,8 @@ import React from 'react';
 import ReactDOM from 'react-dom';
 import Dom from './utils/dom';
 import getMuiTheme from './styles/getMuiTheme';
+import WindowListenable from './mixins/window-listenable';
+import throttle from 'lodash.throttle';
 
 // heavily inspired by https://github.com/Khan/react-components/blob/master/js/layered-component-mixin.jsx
 const RenderToLayer = React.createClass({
@@ -22,6 +24,10 @@ const RenderToLayer = React.createClass({
     muiTheme: React.PropTypes.object,
   },
 
+  mixins: [
+    WindowListenable,
+  ],
+
   getDefaultProps() {
     return {
       useLayerForClickAway: true,
@@ -29,6 +35,7 @@ const RenderToLayer = React.createClass({
   },
 
   getInitialState() {
+    this._renderLayerThrottled = throttle(this._renderLayer, 100);
     return {
       muiTheme: this.context.muiTheme || getMuiTheme(),
     };
@@ -61,6 +68,11 @@ const RenderToLayer = React.createClass({
     this._unrenderLayer();
   },
 
+  windowListeners: {
+    resize: '_renderLayerThrottled',
+    scroll: '_renderLayerThrottled',
+  },
+
   onClickAway(event) {
     if (event.defaultPrevented) {
       return;
@@ -113,16 +125,12 @@ const RenderToLayer = React.createClass({
     if (open) {
       if (!this._layer) {
         this._layer = document.createElement('div');
+        this._layer.style.position = 'absolute';
         document.body.appendChild(this._layer);
 
         if (this.props.useLayerForClickAway) {
           this._layer.addEventListener('touchstart', this.onClickAway);
           this._layer.addEventListener('click', this.onClickAway);
-          this._layer.style.position = 'fixed';
-          this._layer.style.top = 0;
-          this._layer.style.bottom = 0;
-          this._layer.style.left = 0;
-          this._layer.style.right = 0;
           this._layer.style.zIndex = this.state.muiTheme.zIndex.layer;
         } else {
           setTimeout(() => {
@@ -131,7 +139,15 @@ const RenderToLayer = React.createClass({
           }, 0);
         }
       }
-
+      const {documentElement, body} = document;
+      const top = window.pageYOffset || documentElement.scrollTop || body.scrollTop || 0;
+      const left = window.pageXOffset || documentElement.scrollLeft || body.scrollLeft || 0;
+
+      this._layer.style.top = `${top}px`;
+      this._layer.style.height = `${body.clientHeight}px`;
+      this._layer.style.left = `${left}px`;
+      this._layer.style.width = `${body.clientWidth}px`;
+      
       // By calling this method in componentDidMount() and
       // componentDidUpdate(), you're effectively creating a "wormhole" that
       // funnels React's hierarchical updates through to a DOM node on an