Some fixes
diff --git a/system/database/drivers/pdo/pdo_driver.php b/system/database/drivers/pdo/pdo_driver.php
index d18720e..824594f 100644
--- a/system/database/drivers/pdo/pdo_driver.php
+++ b/system/database/drivers/pdo/pdo_driver.php
@@ -57,7 +57,7 @@
 	protected $_count_string = 'SELECT COUNT(*) AS ';
 	protected $_random_keyword;
 
-	protected $trans_enabled = FALSE;
+	public $trans_enabled = FALSE;
 
 	// need to track the PDO options
 	public $options = array();