diff --git a/html/includes/print-event.inc b/html/includes/print-event.inc
index 288128a1c4..7279cfa65b 100644
--- a/html/includes/print-event.inc
+++ b/html/includes/print-event.inc
@@ -1,7 +1,7 @@
 
 <?php
 
-if($bg == $list_colour_a) { $bg = $list_colour_b; } else { $bg=$list_colour_a; }
+if(isset($bg) && $bg == $list_colour_a) { $bg = $list_colour_b; } else { $bg=$list_colour_a; }
 
   $hostname = gethostbyid($entry['host']);
 
@@ -16,7 +16,7 @@ if($bg == $list_colour_a) { $bg = $list_colour_b; } else { $bg=$list_colour_a; }
     <td class="syslog" width="160">
       ' . $entry['datetime'] . '
     </td>');
-  if(!$_GET[id] && !$overview) {
+  if(!isset($_GET['id']) && (!isset($overview) || $overview == 0)) {
     $dev['device_id'] = $entry['host'];
     $dev['hostname'] = $hostname;
     echo("<td class=list-bold width=150>
diff --git a/html/index.php b/html/index.php
index c27fea80da..b8ca03c083 100755
--- a/html/index.php
+++ b/html/index.php
@@ -82,7 +82,7 @@ function popUp(URL) {
         $data = trim(shell_exec("cat " . $config['install_dir'] . "/rrd/version.txt"));
               
         list($major, $minor, $release) = explode(".", $data);
-                list($cur, $tag) = explode("-", $config['version']);
+                if (strstr('-',$config['version'])) { list($cur, $tag) = explode("-", $config['version']); } else { $cur = $config['version']; }
                 list($cur_major, $cur_minor, $cur_release) = explode(".", $cur);
 
                 if($major > $cur_major) {
@@ -118,7 +118,7 @@ function popUp(URL) {
   if($_SESSION['authenticated']) {
     include("includes/warn-deleted-interfaces.inc.php");
     ## Authenticated. Print a page.
-    if($_GET['page'] && !strstr("..", $_GET['page']) &&  is_file("pages/" . $_GET['page'] . ".php")) {
+    if(isset($_GET['page']) && !strstr("..", $_GET['page']) &&  is_file("pages/" . $_GET['page'] . ".php")) {
       include("pages/" . $_GET['page'] . ".php");
     } else { 
       if($config['front_page']) {
diff --git a/html/pages/front/default.php b/html/pages/front/default.php
index 3b27e57490..57e51fb980 100644
--- a/html/pages/front/default.php
+++ b/html/pages/front/default.php
@@ -92,7 +92,7 @@ while($device = mysql_fetch_array($sql)){
 
 }
 
-if($config['frontpage_display'] == 'syslog') {
+if($config['enable_syslog']) {
 
   ## Open Syslog Div
   echo("<div style='margin: 4px; clear: both; padding: 5px;'>  
diff --git a/includes/collectd/config.php b/includes/collectd/config.php
index 5982c652b4..1cbb0b57e1 100644
--- a/includes/collectd/config.php
+++ b/includes/collectd/config.php
@@ -6,13 +6,13 @@
 // Array of paths when collectd's rrdtool plugin writes RRDs
 $config['datadirs']   = array('/var/lib/collectd/rrd/');
 // Width of graph to be generated by rrdgraph
-if($_GET['width']) {
+if(isset($_GET['width'])) {
  $config['rrd_width'] = $_GET['width'];
 } else {
  $config['rrd_width']  = 270;
 }
 // Height of graph to be generated by rrdgraph
-if($_GET['height']) {
+if(isset($_GET['height'])) {
  $config['rrd_height'] = $_GET['height'];
 } else {
  $config['rrd_height'] = 120;
@@ -29,7 +29,7 @@ $config['rrd_interval']  = 10;
 // Average rows/rra (currently ignored)
 $config['rrd_rows']      = 2400;
 // Additional options to pass to rrdgraph
-$config['rrd_opts']      = $config['rrdgraph_defaults'];
+$config['rrd_opts']      = (isset($config['rrdgraph_defaults']) ? $config['rrdgraph_defaults'] : '');
 #$config['rrd_opts']      = array('-E', "-c", "SHADEA#a5a5a5", "-c", "SHADEB#a5a5a5", "-c", "FONT#000000", "-c", "CANVAS#FFFFFF", "-c", "GRID#aaaaaa",
 #                                       "-c", "MGRID#FFAAAA", "-c", "FRAME#3e3e3e", "-c", "ARROW#5e5e5e", "-R", "normal");
 // Predefined set of colors for use by collectd_draw_rrd()
diff --git a/includes/functions.php b/includes/functions.php
index dce9efb9cb..5c85d91f42 100755
--- a/includes/functions.php
+++ b/includes/functions.php
@@ -72,19 +72,13 @@ function write_dev_attrib($device_id, $attrib_type, $attrib_value) {
 }
 
 function shorthost($hostname, $len=16) {
-  list ($first, $second, $third, $fourth, $fifth) = explode(".", $hostname);
-  $shorthost = $first;
-  if(strlen($first.".".$second) < $len && $second) { 
-    $shorthost = $first.".".$second; 
-    if(strlen($shorthost.".".$third) < $len && $third) {
-      $shorthost = $shorthost.".".$third;
-      if(strlen($shorthost.".".$fourth) < $len && $fourth) {
-        $shorthost = $shorthost.".".$fourth;
-        if(strlen($shorthost.".".$fifth) < $len && $fifth) {
-          $shorthost = $shorthost.".".$fifth;
-        }
-      }
-    }
+  $parts = explode(".", $hostname);
+  $shorthost = $parts[0];
+  $i=1;
+  while ($i < count($parts) && strlen($shorthost.'.'.$parts[$i]) < $len)
+  {
+    $shorthost = $shorthost.'.'.$parts[$i];
+    $i++;
   }
   return ($shorthost);
 }
@@ -281,12 +275,12 @@ function geteventicon ($message)
   if($icon) { return $icon; } else { return false; }
 }
 
-function generateiflink($interface, $text=0,$type) 
+function generateiflink($interface, $text=0, $type = '') 
 {
   global $twoday; global $now; global $config; global $day; global $month;
   $interface = ifNameDescr($interface);
   if(!$text) { $text = fixIfName($interface['label']); }
-  if($type) { $interface['graph_type'] = $type; }
+  if(isset($type)) { $interface['graph_type'] = $type; }
   if(!$interface['graph_type']) { $interface['graph_type'] = 'port_bits'; }
   $class = ifclass($interface['ifOperStatus'], $interface['ifAdminStatus']);
   $graph_url = $config['base_url'] . "/graph.php?port=" . $interface['interface_id'] . "&amp;from=$day&amp;to=$now&amp;width=400&amp;height=100&amp;type=" . $interface['graph_type'];
@@ -325,10 +319,10 @@ function device_traffic_image($device, $width, $height, $from, $to)
 
 function devclass($device) 
 {
-   if ($device['status'] == '0') { $class = "list-device-down"; } else { $class = "list-device"; }
-   if ($device['ignore'] == '1') {
+   if (isset($device['status']) && $device['status'] == '0') { $class = "list-device-down"; } else { $class = "list-device"; }
+   if (isset($device['ignore']) &&$device['ignore'] == '1') {
      $class = "list-device-ignored";
-     if ($device['status'] == '1') { $class = "list-device-ignored-up"; }
+     if (isset($device['status']) && $device['status'] == '1') { $class = "list-device-ignored-up"; }
    }
   return $class;
 }
diff --git a/includes/rewrites.php b/includes/rewrites.php
index fc0a96e02b..f739ab75e4 100644
--- a/includes/rewrites.php
+++ b/includes/rewrites.php
@@ -10,7 +10,7 @@ function ifNameDescr ($interface, $device = NULL) {
   global $config;
   if(!$device) { $device = device_array($interface['device_id']); }
   $os = strtolower($device['os']);
-  if($config['ifname'][$os]) {
+  if(isset($config['ifname'][$os])) {
     $interface['label'] = $interface['ifDescr'];
   } else {
     $interface['label'] = $interface['ifName'];