diff --git wp-includes/js/tinymce/plugins/wpdialogs/editor_plugin.dev.js wp-includes/js/tinymce/plugins/wpdialogs/editor_plugin.dev.js
index bdc63dd..44c4e2a 100644
--- wp-includes/js/tinymce/plugins/wpdialogs/editor_plugin.dev.js
+++ wp-includes/js/tinymce/plugins/wpdialogs/editor_plugin.dev.js
@@ -54,7 +54,18 @@
 
 	tinymce.create('tinymce.WPWindowManager:tinymce.InlineWindowManager', {
 		WPWindowManager : function(ed) {
-			this.parent(ed);
+			var t = this;
+			t.parent(ed);
+
+			$(window).resize([t], t._window_resize);
+		},
+		
+		_window_resize : function(e) {
+			var t = e.data[0];
+
+			if (t.element) {
+				t.element.wpdialog('option', 'position', 'center');
+			}
 		},
 
 		open : function(f, p) {
@@ -93,5 +104,4 @@
 
 	// Register plugin
 	tinymce.PluginManager.add('wpdialogs', tinymce.plugins.WPDialogs);
-})(jQuery);
-
+})(jQuery);
\ No newline at end of file
diff --git wp-includes/js/tinymce/plugins/wpdialogs/editor_plugin.js wp-includes/js/tinymce/plugins/wpdialogs/editor_plugin.js
index fc621f1..18e5039 100644
--- wp-includes/js/tinymce/plugins/wpdialogs/editor_plugin.js
+++ wp-includes/js/tinymce/plugins/wpdialogs/editor_plugin.js
@@ -1 +1 @@
-(function(b){var a=function(c){return function(){if(this.features.wpDialog){return c.apply(this,arguments)}else{return this.parent.apply(this,arguments)}}};tinymce.create("tinymce.plugins.WPDialogs",{init:function(c,d){c.onBeforeRenderUI.add(function(){c.windowManager=new tinymce.WPWindowManager(c)})},getInfo:function(){return{longname:"WPDialogs",author:"WordPress",authorurl:"http://wordpress.org",infourl:"http://wordpress.org",version:"0.1"}}});b(document).ready(function(){b.widget("wp.wpdialog",b.ui.dialog,{open:function(){if(tinyMCEPopup){tinyMCEPopup.init()}b.ui.dialog.prototype.open.apply(this,arguments);this.element.focus();this._trigger("refresh")}})});tinymce.create("tinymce.WPWindowManager:tinymce.InlineWindowManager",{WPWindowManager:function(c){this.parent(c)},open:function(e,g){var d=this,c;if(!e.wpDialog){return this.parent(e,g)}else{if(!e.id){return}}c=b("#"+e.id);if(!c.length){return}d.features=e;d.params=g;d.onOpen.dispatch(d,e,g);d.element=d.windows[e.id]=c;d.bookmark=d.editor.selection.getBookmark(1);c.wpdialog({title:e.title,width:e.width,height:e.height,modal:true,dialogClass:"wp-dialog",zIndex:300000})},close:a(function(){this.element.wpdialog("close")})});tinymce.PluginManager.add("wpdialogs",tinymce.plugins.WPDialogs)})(jQuery);
\ No newline at end of file
+(function(b){var a=function(c){return function(){if(this.features.wpDialog){return c.apply(this,arguments)}else{return this.parent.apply(this,arguments)}}};tinymce.create("tinymce.plugins.WPDialogs",{init:function(c,d){c.onBeforeRenderUI.add(function(){c.windowManager=new tinymce.WPWindowManager(c)})},getInfo:function(){return{longname:"WPDialogs",author:"WordPress",authorurl:"http://wordpress.org",infourl:"http://wordpress.org",version:"0.1"}}});b(document).ready(function(){b.widget("wp.wpdialog",b.ui.dialog,{open:function(){if(tinyMCEPopup){tinyMCEPopup.init()}b.ui.dialog.prototype.open.apply(this,arguments);this.element.focus();this._trigger("refresh")}})});tinymce.create("tinymce.WPWindowManager:tinymce.InlineWindowManager",{WPWindowManager:function(c){var d=this;d.parent(c);b(window).resize([d],d._window_resize)},_window_resize:function(d){var c=d.data[0];if(c.element){c.element.wpdialog("option","position","center")}},open:function(e,g){var d=this,c;if(!e.wpDialog){return this.parent(e,g)}else{if(!e.id){return}}c=b("#"+e.id);if(!c.length){return}d.features=e;d.params=g;d.onOpen.dispatch(d,e,g);d.element=d.windows[e.id]=c;d.bookmark=d.editor.selection.getBookmark(1);c.wpdialog({title:e.title,width:e.width,height:e.height,modal:true,dialogClass:"wp-dialog",zIndex:300000})},close:a(function(){this.element.wpdialog("close")})});tinymce.PluginManager.add("wpdialogs",tinymce.plugins.WPDialogs)})(jQuery);
\ No newline at end of file