Index: wp-admin/includes/class-wp-list-table.php
===================================================================
--- wp-admin/includes/class-wp-list-table.php	(revision 17231)
+++ wp-admin/includes/class-wp-list-table.php	(working copy)
@@ -688,7 +688,7 @@
 		$this->display_tablenav( 'top' );
 
 ?>
-<table class="<?php echo implode( ' ', $this->get_table_classes() ); ?>" cellspacing="0">
+<table class="wp-list-table <?php echo implode( ' ', $this->get_table_classes() ); ?>" cellspacing="0">
 	<thead>
 	<tr>
 		<?php $this->print_column_headers(); ?>
Index: wp-admin/js/list-table.dev.js
===================================================================
--- wp-admin/js/list-table.dev.js	(revision 17231)
+++ wp-admin/js/list-table.dev.js	(working copy)
@@ -5,9 +5,7 @@
 	init: function() {
 		this.loading = false;
 
-		$('form').each(function() {
-			this.reset();
-		});
+		this.reset( '.tablenav, .search-box, .wp-list-table' );
 
 		if ( '' == $.query.GET('paged') )
 			$.query.SET('paged', 1);
@@ -16,6 +14,17 @@
 		this.$tbody = $('#the-list, #the-comment-list');
 	},
 
+	reset: function( context ) {
+		context = $( context );
+		$('input', context).each( function(){
+			this.value = this.defaultValue;
+			this.checked = this.defaultChecked;
+		});
+		$('option', context).each( function(){
+			this.selected = this.defaultSelected;
+		});
+	},
+
 	// paging
 	set_total_pages: function(num) {
 		var last_page_url = $('.last-page').attr('href');