diff --git a/shared/html/libs/winjs/1.0/css/ui-dark.css b/shared/html/libs/winjs/1.0/css/ui-dark.css
index c97dcad..3497fc8 100644
--- a/shared/html/libs/winjs/1.0/css/ui-dark.css
+++ b/shared/html/libs/winjs/1.0/css/ui-dark.css
@@ -3,7 +3,7 @@
 
   This library is supported for use in Windows Store apps only.
 
-  Build: 1.0.9200.20602.win8_ldr.130108-1504
+  Build: 1.0.9200.20789.win8_ldr.130802-2151
 
   Version: Microsoft.WinJS.1.0
 */
diff --git a/shared/html/libs/winjs/1.0/css/ui-light.css b/shared/html/libs/winjs/1.0/css/ui-light.css
index f8c5855..cd4f1fe 100644
--- a/shared/html/libs/winjs/1.0/css/ui-light.css
+++ b/shared/html/libs/winjs/1.0/css/ui-light.css
@@ -3,7 +3,7 @@
 
   This library is supported for use in Windows Store apps only.
 
-  Build: 1.0.9200.20602.win8_ldr.130108-1504
+  Build: 1.0.9200.20789.win8_ldr.130802-2151
 
   Version: Microsoft.WinJS.1.0
 */
diff --git a/shared/html/libs/winjs/1.0/js/base.js b/shared/html/libs/winjs/1.0/js/base.js
index 07952e3..648826e 100644
--- a/shared/html/libs/winjs/1.0/js/base.js
+++ b/shared/html/libs/winjs/1.0/js/base.js
@@ -4,7 +4,7 @@
 
   This library is supported for use in Windows Store apps only.
 
-  Build: 1.0.9200.20602.win8_ldr.130108-1504
+  Build: 1.0.9200.20789.win8_ldr.130802-2151
   
   Version: Microsoft.WinJS.1.0
 */
diff --git a/shared/html/libs/winjs/1.0/js/en-us/base.strings.js b/shared/html/libs/winjs/1.0/js/en-us/base.strings.js
index 854ade8..fa62e0b 100644
--- a/shared/html/libs/winjs/1.0/js/en-us/base.strings.js
+++ b/shared/html/libs/winjs/1.0/js/en-us/base.strings.js
@@ -4,7 +4,7 @@
 
   This library is supported for use in Windows Store apps only.
 
-  Build: 1.0.9200.20602.win8_ldr.130108-1504
+  Build: 1.0.9200.20789.win8_ldr.130802-2151
   
   Version: Microsoft.WinJS.1.0
 */
diff --git a/shared/html/libs/winjs/1.0/js/en-us/ui.strings.js b/shared/html/libs/winjs/1.0/js/en-us/ui.strings.js
index 1235df7..759c1cc 100644
--- a/shared/html/libs/winjs/1.0/js/en-us/ui.strings.js
+++ b/shared/html/libs/winjs/1.0/js/en-us/ui.strings.js
@@ -4,7 +4,7 @@
 
   This library is supported for use in Windows Store apps only.
 
-  Build: 1.0.9200.20602.win8_ldr.130108-1504
+  Build: 1.0.9200.20789.win8_ldr.130802-2151
   
   Version: Microsoft.WinJS.1.0
 */
diff --git a/shared/html/libs/winjs/1.0/js/ui.js b/shared/html/libs/winjs/1.0/js/ui.js
index ee71f06..74f8a60 100644
--- a/shared/html/libs/winjs/1.0/js/ui.js
+++ b/shared/html/libs/winjs/1.0/js/ui.js
@@ -4,7 +4,7 @@
 
   This library is supported for use in Windows Store apps only.
 
-  Build: 1.0.9200.20602.win8_ldr.130108-1504
+  Build: 1.0.9200.20789.win8_ldr.130802-2151
   
   Version: Microsoft.WinJS.1.0
 */
@@ -12320,7 +12320,7 @@ WinJS.Namespace.define("WinJS.UI", {
 
     var animations = WinJS.UI.Animation;
 
-    var leftBufferAmount = 500,
+    var leftBufferAmount = 50,
         itemSelectedEventDelay = 250;
 
     var strings = {
@@ -12401,8 +12401,9 @@ WinJS.Namespace.define("WinJS.UI", {
                 }, true);
                 this._panningDivContainer.addEventListener("MSManipulationStateChanged", function (event) {
                     that._manipulationState = event.currentState;
-                    if (event.currentState === 0) {
+                    if (event.currentState === 0 && event.srcElement === that._panningDivContainer) {
                         that._itemSettledOn();
+                        that._ensureCentered();
                     }
                 }, true);
             },