Modified MSSQL driver to use mssql_get_last_message() for error messages.
diff --git a/system/database/drivers/mssql/mssql_driver.php b/system/database/drivers/mssql/mssql_driver.php
index 4748d56..97ac971 100644
--- a/system/database/drivers/mssql/mssql_driver.php
+++ b/system/database/drivers/mssql/mssql_driver.php
@@ -438,8 +438,7 @@
 	 */
 	function _error_message()
 	{
-		// Are errros even supported in MS SQL?
-		return '';
+		return mssql_get_last_message();
 	}
 	
 	// --------------------------------------------------------------------
diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index 5283605..652aa27 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -76,6 +76,7 @@
 			<li>Added escape_like_str() method for escaping strings to be used in LIKE conditions</li>
 			<li>Updated Active Record to utilize the new LIKE escaping mechanism.</li>
 			<li>Added reconnect() method to DB drivers to try to keep alive / reestablish a connection after a long idle.</li>
+			<li>Modified MSSQL driver to use mssql_get_last_message() for error messages.</li>
 		</ul>
 	</li>
 	<li>Helpers