diff --git a/html/includes/print-interface-graphs.inc.php b/html/includes/print-interface-graphs.inc.php
index 2e623beb0..30d062077 100644
--- a/html/includes/print-interface-graphs.inc.php
+++ b/html/includes/print-interface-graphs.inc.php
@@ -14,10 +14,15 @@
 
   $periods = array('day', 'week', 'month', 'year');
 
+if($graph_type == "etherlike" && !is_file($config['rrd_dir'] . "/" . $device['hostname'] . "/etherlike-" . $interface['ifIndex'] . ".rrd")) {
+} else {
+
   foreach($periods as $period) {
     $graph_array['from']     = $$period;
     $graph_array_zoom 	= $graph_array; $graph_array_zoom['height'] = "150"; $graph_array_zoom['width'] = "400";
     echo(overlib_link($_SERVER['REQUEST_URI'], generate_graph_tag($graph_array), generate_graph_tag($graph_array_zoom),  NULL));
   }
 
+}
+
 ?>
diff --git a/includes/polling/mempools.inc.php b/includes/polling/mempools.inc.php
index 010859e88..a9a3008e7 100755
--- a/includes/polling/mempools.inc.php
+++ b/includes/polling/mempools.inc.php
@@ -52,6 +52,8 @@ while($mempool = mysql_fetch_array($mempool_data)) {
 
 }
 
+unset($mempool_cache);
+
 echo("\n");
 
 ?>