Index: /CKEditor/trunk/_source/plugins/forms/dialogs/radio.js
===================================================================
--- /CKEditor/trunk/_source/plugins/forms/dialogs/radio.js	(revision 6322)
+++ /CKEditor/trunk/_source/plugins/forms/dialogs/radio.js	(revision 6323)
@@ -104,5 +104,5 @@
 							var element = data.element;
 
-							if ( !CKEDITOR.env.ie )
+							if ( !( CKEDITOR.env.ie || CKEDITOR.env.opera ) )
 							{
 								if ( this.getValue() )