diff --git a/classes/cache.class.php b/classes/cache.class.php
index 77da0f5a..5f759f14 100644
--- a/classes/cache.class.php
+++ b/classes/cache.class.php
@@ -83,7 +83,7 @@ public function cache_value($Key, $Value, $Duration = 2592000) {
 		if (!$this->set($Key, $Value, 0, $Duration)) {
 			trigger_error("Cache insert failed for key $Key");
 		}
-		if (array_key_exists($Key, $this->CacheHits)) {
+		if ($this->InternalCache && array_key_exists($Key, $this->CacheHits)) {
 			$this->CacheHits[$Key] = $Value;
 		}
 		$this->Time += (microtime(true) - $StartTime) * 1000;
@@ -100,7 +100,7 @@ public function add_value($Key, $Value, $Duration = 2592000) {
 	public function replace_value($Key, $Value, $Duration = 2592000) {
 		$StartTime = microtime(true);
 		$this->replace($Key, $Value, false, $Duration);
-		if (array_key_exists($Key, $this->CacheHits)) {
+		if ($this->InternalCache && array_key_exists($Key, $this->CacheHits)) {
 			$this->CacheHits[$Key] = $Value;
 		}
 		$this->Time += (microtime(true) - $StartTime) * 1000;
diff --git a/gazelle.sql b/gazelle.sql
index 03573e9c..119ef055 100644
--- a/gazelle.sql
+++ b/gazelle.sql
@@ -828,6 +828,7 @@ CREATE TABLE `sphinx_delta` (
   `FileList` mediumtext,
   `Description` text,
   `VoteScore` float NOT NULL DEFAULT '0',
+  `LastChanged` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP,
   PRIMARY KEY (`ID`),
   KEY `GroupID` (`GroupID`)
 ) ENGINE=MyISAM CHARSET utf8;
diff --git a/sections/ajax/better/single.php b/sections/ajax/better/single.php
index 32a184ad..c828e949 100644
--- a/sections/ajax/better/single.php
+++ b/sections/ajax/better/single.php
@@ -1,31 +1,30 @@
 <?
-if (($GroupIDs = $Cache->get_value('better_single_groupids')) === false) {
+if (($Results = $Cache->get_value('better_single_groupids')) === false) {
 	$DB->query("
 		SELECT
 			t.ID AS TorrentID,
 			t.GroupID AS GroupID
 		FROM xbt_files_users AS x
-			JOIN torrents AS t ON t.ID = x.fid
-		WHERE t.Format = 'FLAC'
+			JOIN torrents AS t ON t.ID=x.fid
+		WHERE t.Format='FLAC'
 		GROUP BY x.fid
 		HAVING COUNT(x.uid) = 1
 		ORDER BY t.LogScore DESC, t.Time ASC
 		LIMIT 30");
 
-	$GroupIDs = $DB->to_array('GroupID');
-	$Cache->cache_value('better_single_groupids', $GroupIDs, 30 * 60);
+	$Results = $DB->to_pair('GroupID', 'TorrentID', false);
+	$Cache->cache_value('better_single_groupids', $Results, 30 * 60);
 }
 
-$Results = Torrents::get_groups(array_keys($GroupIDs));
+$Groups = Torrents::get_groups(array_keys($Results));
 
 $JsonResults = array();
-foreach ($GroupIDs as $GroupID) {
-	if (!isset($Results[$GroupID])) {
+foreach ($Results as $GroupID => $FlacID) {
+	if (!isset($Groups[$GroupID])) {
 		continue;
 	}
-	$Group = $Results[$GroupIDs];
+	$Group = $Groups[$GroupID];
 	extract(Torrents::array_group($Group));
-	$FlacID = $GroupIDs[$GroupID]['TorrentID'];
 
 	$JsonArtists = array();
 	if (count($Artists) > 0) {
diff --git a/sections/better/single.php b/sections/better/single.php
index 12425caa..fa95e06b 100644
--- a/sections/better/single.php
+++ b/sections/better/single.php
@@ -1,10 +1,10 @@
 <?
-if (($GroupIDs = $Cache->get_value('better_single_groupids')) === false) {
+if (($Results = $Cache->get_value('better_single_groupids')) === false) {
 	$DB->query("
 		SELECT
 			t.ID AS TorrentID,
 			t.GroupID AS GroupID
-		FROM xbt_files_users AS	x
+		FROM xbt_files_users AS x
 			JOIN torrents AS t ON t.ID=x.fid
 		WHERE t.Format='FLAC'
 		GROUP BY x.fid
@@ -12,11 +12,11 @@
 		ORDER BY t.LogScore DESC, t.Time ASC
 		LIMIT 30");
 
-	$GroupIDs = $DB->to_array('GroupID');
-	$Cache->cache_value('better_single_groupids', $GroupIDs, 30 * 60);
+	$Results = $DB->to_pair('GroupID', 'TorrentID', false);
+	$Cache->cache_value('better_single_groupids', $Results, 30 * 60);
 }
 
-$Results = Torrents::get_groups(array_keys($GroupIDs));
+$Groups = Torrents::get_groups(array_keys($Results));
 
 View::show_header('Single seeder FLACs');
 ?>
@@ -29,11 +29,11 @@
 			<td>Torrent</td>
 		</tr>
 <?
-foreach ($GroupIDs as $GroupID) {
-	if (!isset($Results[$GroupID])) {
+foreach ($Results as $GroupID => $FlacID) {
+	if (!isset($Groups[$GroupID])) {
 		continue;
 	}
-	$Group = $Results[$GroupID];
+	$Group = $Groups[$GroupID];
 	extract(Torrents::array_group($Group));
 	$TorrentTags = new Tags($TagList);
 
@@ -44,7 +44,6 @@
 	} else {
 		$DisplayName = '';
 	}
-	$FlacID = $GroupIDs[$GroupID]['TorrentID'];
 
 	$DisplayName .= "<a href=\"torrents.php?id=$GroupID&amp;torrentid=$FlacID\" class=\"tooltip\" title=\"View torrent\" dir=\"ltr\">$GroupName</a>";
 	if ($GroupYear > 0) {
diff --git a/sections/forums/delete.php b/sections/forums/delete.php
index 4175d812..a40fd442 100644
--- a/sections/forums/delete.php
+++ b/sections/forums/delete.php
@@ -28,6 +28,10 @@
 			)
 	GROUP BY t.ID");
 list($TopicID, $ForumID, $Pages, $Page, $StickyPostID) = $DB->next_record();
+if (!$TopicID) {
+	// Post is deleted or thread doesn't exist
+	error(0); // This is evil, but the ajax call doesn't check the response
+}
 
 // $Pages = number of pages in the thread
 // $Page = which page the post is on
diff --git a/sections/schedule/index.php b/sections/schedule/index.php
index 82300776..607ac78c 100644
--- a/sections/schedule/index.php
+++ b/sections/schedule/index.php
@@ -1275,6 +1275,7 @@ function next_hour() {
 					($HistoryID, $i, $TorrentID, '" . db_string($TitleString) . "', '" . db_string($TagString) . "')");
 			$i++;
 		} //foreach ($Top10 as $Torrent)
+
 		// Send warnings to uploaders of torrents that will be deleted this week
 		$DB->query("
 			SELECT
diff --git a/sections/user/connchecker.php b/sections/user/connchecker.php
index 5e96dea1..b3e38a92 100644
--- a/sections/user/connchecker.php
+++ b/sections/user/connchecker.php
@@ -1,85 +1,11 @@
 <?
-//TODO: Move to somewhere more appropriate, doesn't really belong under users, tools maybe but we don't have that page publicly accessible.
-
-if (isset($_GET['ip']) && isset($_GET['port'])) {
-	$Octets = explode('.', $_GET['ip']);
-	if (
-		empty($_GET['ip'])
-		|| !preg_match('/'.IP_REGEX.'/', $_GET['ip'])
-		|| $Octets[0] < 0
-		|| $Octets[0] > 255
-		|| $Octets[1] < 0
-		|| $Octets[1] > 255
-		|| $Octets[2] < 0
-		|| $Octets[2] > 255
-		|| $Octets[3] < 0
-		|| $Octets[3] > 255
-		/*
-		 * Per RFC 1918, the following CIDR blocks should never be found on the public Internet.
-		 *		10.0.0.0/8
-		 *		172.16.0.0/12
-		 *		192.168.0.0/16
-		 *
-		 * Per RFC 3330, the block 127.0.0.0/8 should never appear on any network.
-		 *
-		 */
-		|| $Octets[0] == 127
-		|| $Octets[0] == 10
-		|| ($Octets[0] == 172 && ((16 <= $Octets[1]) && ($Octets[1] <= 31)))
-		|| ($Octets[0] == 192 && $Octets[1] == 168)
-	) {
-		die('Invalid IPv4 address');
-	}
-
-	// Valid port numbers are defined in RFC 1700
-	if (empty($_GET['port']) || !is_number($_GET['port']) || $_GET['port'] < 1 || $_GET['port'] > 65535) {
-		die('Invalid port');
-	}
-
-	// Error suppression, ugh.
-	if (@fsockopen($_GET['ip'], $_GET['port'], $Errno, $Errstr, 20)) {
-		die('Port '.$_GET['port'].' on '.$_GET['ip'].' connected successfully.');
-	} else {
-		die('Port '.$_GET['port'].' on '.$_GET['ip'].' failed to connect.');
-	}
-}
-
 View::show_header('Connectability Checker');
 ?>
 <div class="thin">
 	<div class="header">
 		<h2><a href="user.php?id=<?=$LoggedUser['ID']?>"><?=$LoggedUser['Username']?></a> &gt; Connectability Checker</h2>
 	</div>
-	<form class="manage_form" name="connections" action="javascript:check_ip();" method="get">
-		<table class="layout">
-			<tr>
-				<td class="label">IP address</td>
-				<td>
-					<input type="text" id="ip" name="ip" value="<?=$_SERVER['REMOTE_ADDR']?>" size="20" />
-				</td>
-				<td class="label">Port</td>
-				<td>
-					<input type="text" id="port" name="port" size="10" />
-				</td>
-				<td>
-					<input type="submit" value="Check" />
-				</td>
-			</tr>
-		</table>
-	</form>
-	<div id="result" class="box pad"></div>
+	<div class="linkbox"></div>
+	<div class="box pad">This page has been disabled because the results have been inaccurate. Try a smarter and more reliable service, like <a href="http://www.canyouseeme.org">http://www.canyouseeme.org</a>.</div>
 </div>
-<script type="text/javascript">//<![CDATA[
-var result = $('#result').raw();
-
-function check_ip() {
-	var intervalid = setInterval("result.innerHTML += '.';",999);
-	result.innerHTML = 'Checking.';
-	ajax.get('user.php?action=connchecker&ip=' + $('#ip').raw().value + '&port=' + $('#port').raw().value, function (response) {
-		clearInterval(intervalid);
-		result.innerHTML = response;
-	});
-}
-//]]>
-</script>
 <? View::show_footer(); ?>