diff --git a/system/database/DB_driver.php b/system/database/DB_driver.php
index 9628e9a..e61af91 100644
--- a/system/database/DB_driver.php
+++ b/system/database/DB_driver.php
@@ -1353,7 +1353,7 @@
 		$trace = debug_backtrace();
 		foreach ($trace as $call)
 		{
-			if (isset($call['file']) && strpos($call['file'], BASEPATH.'database') === FALSE && isset($call['class']) && strpos($call['class'], 'Loader') !== FALSE)
+			if (isset($call['file'], $call['class']) && strpos($call['file'], BASEPATH.'database') === FALSE && strpos($call['class'], 'Loader') !== FALSE)
 			{
 				// Found it - use a relative path for safety
 				$message[] = 'Filename: '.str_replace(array(APPPATH, BASEPATH), '', $call['file']);
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index f7dfc84..481afee 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -51,8 +51,8 @@
    -  Changed detection of ``$view_folder`` so that if it's not found in the current path, it will now also be searched for under the application folder.
    -  Path constants BASEPATH, APPPATH and VIEWPATH are now (internally) defined as absolute paths.
    -  Updated email validation methods to use ``filter_var()`` instead of PCRE.
-   -  Changed environment defaults to report all errors in 'development' and only fatal ones in 'testing' and 'production' but only display them in 'development'.
-   -  Updated ip_address lengths from 16 to 45 for supporting ipv6 address on trackback library and captcha helper.
+   -  Changed environment defaults to report all errors in *development* and only fatal ones in *testing*, *production* but only display them in *development*.
+   -  Updated *ip_address* database field lengths from 16 to 45 for supporting IPv6 address on :doc:`Trackback Library <libraries/trackback>` and :doc:`Captcha Helper <helpers/captcha_helper>`.
 
 -  Helpers
 
@@ -144,7 +144,7 @@
    -  Added capability for packages to hold database.php config files
    -  Added subdrivers support (currently only used by PDO).
    -  Added client compression support for MySQL and MySQLi.
-   -  Removed Loader class from Database error to better find the likely culprit.
+   -  Removed :doc:`Loader Class <libraries/loader>` from Database error to better find the likely culprit.
 
 -  Libraries
 
@@ -201,7 +201,7 @@
 	 -  Added support for setting custom attributes.
 	 -  Deprecated usage of the "anchor_class" setting (use the new "attributes" setting instead).
 	 -  Added $config['reuse_query_string'] to allow automatic repopulation of query string arguments, combined with normal URI segments.
-    -  Removed the default ``&nbsp;`` from a number of the configuration variables.
+   -  Removed the default ``&nbsp;`` from a number of the configuration variables.
    -  Added the ability to use a proxy with the :doc:`XML-RPC Library <libraries/xmlrpc>`.
 
 -  Core
@@ -340,7 +340,7 @@
 -  Fixed a bug (#1613) - :doc:`Form Helper <helpers/form_helper>` functions ``form_multiselect()``, ``form_dropdown()`` didn't properly handle empty array option groups.
 -  Fixed a bug (#1605) - :doc:`Pagination Library <libraries/pagination>` produced incorrect *previous* and *next* link values.
 -  Fixed a bug in SQLSRV's ``affected_rows()`` method where an erroneous function name was used.
--  Fixed a bug (#1000) - Change syntax of $view_file to $_ci_view_file to prevent being overwritten by application.
+-  Fixed a bug (#1000) - Change syntax of ``$view_file`` to ``$_ci_view_file`` to prevent being overwritten by application.
 
 Version 2.1.2
 =============