diff --git a/changelog.txt b/changelog.txt
index 4eb7f7e7..1cd6f9df 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -21,6 +21,7 @@ OPENSEADRAGON CHANGELOG
 * Arrow key navigation fixed across platforms (#565)
 * Removed textarea element from viewer DOM. Viewer.canvas now handles keyboard navigation (#569)
 * Removed 'position' property from MouseTracker keyDownHandler/keyUpHandler/keyHandler functions (#573)
+* Fixed pointer event model detection for IE 10 and IE 11 (#571)
 * Added setMouseNavEnabled() support to Navigator (#572)
 
 1.2.0:
diff --git a/src/mousetracker.js b/src/mousetracker.js
index 86e87076..609fde7b 100644
--- a/src/mousetracker.js
+++ b/src/mousetracker.js
@@ -977,7 +977,8 @@
         $.MouseTracker.subscribeEvents.push( "MozMousePixelScroll" );
     }
 
-    if ( window.PointerEvent ) {
+    // Note: window.navigator.pointerEnable is deprecated on IE 11 and not part of W3C spec.
+    if ( window.PointerEvent && ( window.navigator.pointerEnabled || $.Browser.vendor !== $.BROWSERS.IE ) ) {
         // IE11 and other W3C Pointer Event implementations (see http://www.w3.org/TR/pointerevents)
         $.MouseTracker.havePointerEvents = true;
         $.MouseTracker.subscribeEvents.push( "pointerover", "pointerout", "pointerdown", "pointerup", "pointermove", "pointercancel" );
@@ -988,7 +989,7 @@
             $.MouseTracker.maxTouchPoints = 0;
         }
         $.MouseTracker.haveMouseEnter = false;
-    } else if ( window.MSPointerEvent ) {
+    } else if ( window.MSPointerEvent && window.navigator.msPointerEnabled ) {
         // IE10
         $.MouseTracker.havePointerEvents = true;
         $.MouseTracker.subscribeEvents.push( "MSPointerOver", "MSPointerOut", "MSPointerDown", "MSPointerUp", "MSPointerMove", "MSPointerCancel" );