--- cacti-0.8.7g/lib/api_data_source.php	2010-07-09 18:33:46.000000000 -0400
+++ cacti-0.8.7g-patched/lib/api_data_source.php	2010-07-27 21:30:31.000000000 -0400
@@ -131,12 +131,12 @@
 
 			$i++;
 
-			if ($i % 1000) {
+			if (!($i % 1000)) {
 				db_execute("DELETE FROM poller_item WHERE local_data_id IN ($ids_to_disable)");
 				db_execute("UPDATE data_template_data SET active='' WHERE local_data_id IN ($ids_to_disable)");
 
 				$i = 0;
-				$ids_to_delete = "";
+				$ids_to_disable = "";
 			}
 		}