diff --git a/edit-comic.php b/edit-comic.php
index 24a1b2c..656964f 100644
--- a/edit-comic.php
+++ b/edit-comic.php
@@ -87,7 +87,7 @@ if( $_POST ) {
 				$imagedata = getimagesize($_FILES['comicFile']['tmp_name']);
 				$strip->media = $imagedata[2];
 			}
-			$fileext = $dbConnection->fetchColumn('SELECT extension FROM media_t WHERE id = ?', array($strip->media), array(PDO::PARAM_INT));
+			$fileext = $dbConnection->fetchColumn('SELECT extension FROM media_t WHERE id = ?', array($strip->media), 0, array(PDO::PARAM_INT));
 
 			if(strlen($fileext) < 3)
 			{
diff --git a/include/twitter.php b/include/twitter.php
index 8774d6c..4bab4fa 100644
--- a/include/twitter.php
+++ b/include/twitter.php
@@ -2,6 +2,8 @@
 
 function twitterpost($message, $user=TWITTER_USER, $password=TWITTER_PASS)
 {
+	if (!TWITTER_ENABLED) return;
+	
 	global $dbConnection, $info, $error;
 	if( $user == '' ) {
 		# preserve existing twitterpost(message) style posting until OAuth has been vetted.
diff --git a/manage-types.php b/manage-types.php
index 790544b..d93a7e9 100644
--- a/manage-types.php
+++ b/manage-types.php
@@ -6,12 +6,12 @@ auth_redirect(); // Require logged in user to access this page.
 
 if( isset($_GET['delete'])  && (int)$_GET['delete'] ) {
 	check_nonce('delete-type-' . (int)$_GET['delete']);
-	if(! $dbConnection->executeUpdate('DELETE FROM strip_t WHERE id = ?', array($_GET['delete'])))
+	if(false === $dbConnection->executeUpdate('DELETE FROM strip_t WHERE id = ?', array($_GET['delete'])))
 	{
 		adminlog("Error deleting type ".(int)$_GET['delete'], MTS_TYPE, MTA_DELETE, E_WARNING);
 		mtdie("Error on deletion of existing type: " . $dbConnection->errorCode(), 'SQL Error');
 	}
-	if(! $dbConnection->executeUpdate('DELETE FROM meta WHERE type = ?', array($_GET['delete'])))
+	if(false === $dbConnection->executeUpdate('DELETE FROM meta WHERE type = ?', array($_GET['delete'])))
 	{
 		adminlog("Error on deletion of type ".(int)$_GET['delete']."'s metadata.", MTS_TYPE, MTA_DELETE, E_WARNING);
 		mtdie("Error on deletion of existing type's metadata: " . $dbConnection->errorCode(), 'SQL Error');
@@ -101,7 +101,7 @@ if( isset($_POST['action']) && $_POST['action'] == 'edit_type' ) {
 }
 
 //display all types
-$types = $dbConnection->fetchAll('SELECT strip_t.id AS id, strip_t.name AS name, strip_t.description AS description, COUNT(strip.id) AS strips FROM strip_t JOIN strip ON strip.type = strip_t.id GROUP BY strip_t.id');
+$types = $dbConnection->fetchAll('SELECT strip_t.id AS id, strip_t.name AS name, strip_t.description AS description, COUNT(strip.id) AS strips FROM strip_t LEFT JOIN strip ON strip.type = strip_t.id GROUP BY strip_t.id');
 
 adminhead('Types');
 adminmenu();