Changed the radio() and checkbox() functions to default to not checked by default.
diff --git a/system/helpers/form_helper.php b/system/helpers/form_helper.php
index 1085833..c9a6897 100644
--- a/system/helpers/form_helper.php
+++ b/system/helpers/form_helper.php
@@ -289,7 +289,7 @@
  */	

 if (! function_exists('form_checkbox'))

 {

-	function form_checkbox($data = '', $value = '', $checked = TRUE, $extra = '')

+	function form_checkbox($data = '', $value = '', $checked = FALSE, $extra = '')

 	{

 		$defaults = array('type' => 'checkbox', 'name' => ((! is_array($data)) ? $data : ''), 'value' => $value);

 	

@@ -330,7 +330,7 @@
  */	

 if (! function_exists('form_radio'))

 {

-	function form_radio($data = '', $value = '', $checked = TRUE, $extra = '')

+	function form_radio($data = '', $value = '', $checked = FALSE, $extra = '')

 	{

 		if (! is_array($data))

 		{