Index: /CKEditor/trunk/CHANGES.html
===================================================================
--- /CKEditor/trunk/CHANGES.html	(revision 4445)
+++ /CKEditor/trunk/CHANGES.html	(revision 4446)
@@ -51,4 +51,5 @@
 		<li><a href="http://dev.fckeditor.net/ticket/4477">#4477</a> : Adding missing tag names in object style elements.</li>
 		<li><a href="http://dev.fckeditor.net/ticket/4567">#4567</a> : Fixed IE throw error when pressing 'Back Space' in source mode.</li>
+		<li><a href="http://dev.fckeditor.net/ticket/4573">#4573</a> : Fixed 'IgnoreEmptyPargraph' config doesn't work with config 'entites' set to 'false'.</li>
 	</ul>
 	<h3>
Index: /CKEditor/trunk/_source/plugins/wysiwygarea/plugin.js
===================================================================
--- /CKEditor/trunk/_source/plugins/wysiwygarea/plugin.js	(revision 4445)
+++ /CKEditor/trunk/_source/plugins/wysiwygarea/plugin.js	(revision 4446)
@@ -16,5 +16,5 @@
 	var nonExitableElementNames = { table:1,pre:1 };
 	// Matching an empty paragraph at the end of document.
-	var emptyParagraphRegexp = /\s*<(p|div|address|h\d|center)[^>]*>\s*(?:<br[^>]*>|&nbsp;|&#160;)\s*(:?<\/\1>)?\s*$/gi;
+	var emptyParagraphRegexp = /\s*<(p|div|address|h\d|center)[^>]*>\s*(?:<br[^>]*>|&nbsp;|\u00A0|&#160;)\s*(:?<\/\1>)?\s*$/gi;
 
 	function onInsertHtml( evt )