Index: _source/plugins/clipboard/plugin.js
===================================================================
--- _source/plugins/clipboard/plugin.js	(revision 5224)
+++ _source/plugins/clipboard/plugin.js	Fri Apr 09 16:08:15 CST 2010
@@ -28,7 +28,8 @@
 		// the command to execute.
 		body.on( command, onExec );
 
-		doc.$.execCommand( command );
+		// IE6/7: document.execCommand has problem to paste into positioned element. (#5504)
+		( CKEDITOR.env.ie8 ? doc.$ : doc.$.selection.createRange() ) [ 'execCommand' ]( command );
 
 		body.removeListener( command, onExec );