Index: dojo-release-1.3.2-src/dojox/grid/_Selector.js
===================================================================
--- dojo-release-1.3.2-src.orig/dojox/grid/_Selector.js	2010-04-13 11:26:25.000000000 -0700
+++ dojo-release-1.3.2-src/dojox/grid/_Selector.js	2010-04-14 05:18:20.000000000 -0700
@@ -23,7 +23,7 @@
 			var checked = (selectedCount && selectedCount == this.view.grid.rowCount) ? ' dijitCheckBoxChecked dijitChecked' : '';
 			return '<table style="width:' + w + 'px;" ' +
 				'border="0" cellspacing="0" cellpadding="0" ' +
-				'role="presentation"><tr><th style="text-align: center;">'+(
+				'role="presentation"><tr><th class="dojoxGridCell" style="text-align: center;">'+(
 					this._hasCheckBox() ?
 						'<div class="dojoxGridCheckSelector dijitReset dijitInline dijitCheckBox' + checked + '"></div>' :
 						'<div class="dojoxGridCheckSelector dijitReset dijitInline">&nbsp;</div>'
@@ -209,14 +209,13 @@
 		inputType: 'radio',
 		selectionMode: 'single',
 
+		_headerBuilderClass: dojox.grid._InputSelectorHeaderBuilder,
 		_contentBuilderClass: dojox.grid._InputSelectorContentBuilder,
 
 		buildRendering: function(){
 			this.inherited(arguments);
 			this.headerNodeContainer.style.visibility = "hidden";
-		},
-		
-		renderHeader: function(){}
+		}
 	});
 
 	dojo.declare("dojox.grid._CheckBoxSelector", dojox.grid._Selector, {