diff --git a/html/inc/forum.inc b/html/inc/forum.inc
index ce5e740bb3..c1ecff834e 100644
--- a/html/inc/forum.inc
+++ b/html/inc/forum.inc
@@ -1276,4 +1276,17 @@ function remove_subscriptions_thread($userid, $threadid) {
     BoincNotify::delete_aux("userid=$userid and type=".NOTIFY_SUBSCRIBED_POST." and opaque=$threadid");
 }
 
+function parse_forum_cookie() {
+    $x = array("", "");
+    if (isset($_COOKIE['sorting'])) {
+        $a = explode("|", $_COOKIE['sorting']);
+        if (array_key_exists(0, $a)) {
+            $x[0] = $a[0];
+        }
+        if (array_key_exists(1, $a)) {
+            $x[1] = $a[1];
+        }
+    }
+    return $x;
+}
 ?>
diff --git a/html/inc/team.inc b/html/inc/team.inc
index ca6da3e58f..857405daf3 100644
--- a/html/inc/team.inc
+++ b/html/inc/team.inc
@@ -28,6 +28,13 @@ require_once("../inc/time.inc");
 require_once("../inc/stats_sites.inc");
 
 function team_search_form($params) {
+    if (!$params) {
+        $params = new StdClass;
+        $params->keywords = "";
+        $params->country = "";
+        $params->type = "";
+        $params->active = false;
+    }
     echo '<form name="form" action="team_search.php">';
     start_table();
     row2('<b>'.tra('Search criteria (use one or more)').'</b>', '');
diff --git a/html/inc/user.inc b/html/inc/user.inc
index 0454811925..5b91f41e43 100644
--- a/html/inc/user.inc
+++ b/html/inc/user.inc
@@ -110,22 +110,23 @@ function cmp($a, $b) {
 }
 
 function show_other_projects($user, $personal) {
-    if (count($user->projects) > 1) {
-        usort($user->projects, "cmp");
-        if ($personal) {
-            echo "<h2>".tra("Projects in which you are participating")."</h2>";
-        } else {
-            echo "<h2>".tra("Projects in which %1 is participating", $user->name)."</h2>";
-        }
-        start_table();
-        row_heading_array(array(
-            tra("Project")."<br/><span class=\"note\">".tra("Click for user page")."</span>", tra("Total credit"), tra("Average credit"), tra("Since")
-        ));
-        foreach($user->projects as $project) {
-            show_project($project);
-        }
-        end_table();
+    if (!isset($user->projects)) return;
+    if (count($user->projects) < 2) return;
+
+    usort($user->projects, "cmp");
+    if ($personal) {
+        echo "<h2>".tra("Projects in which you are participating")."</h2>";
+    } else {
+        echo "<h2>".tra("Projects in which %1 is participating", $user->name)."</h2>";
     }
+    start_table();
+    row_heading_array(array(
+        tra("Project")."<br/><span class=\"note\">".tra("Click for user page")."</span>", tra("Total credit"), tra("Average credit"), tra("Since")
+    ));
+    foreach($user->projects as $project) {
+        show_project($project);
+    }
+    end_table();
 }
 
 function total_posts($user) {
diff --git a/html/user/forum_forum.php b/html/user/forum_forum.php
index be074c11cf..8de5c86a30 100644
--- a/html/user/forum_forum.php
+++ b/html/user/forum_forum.php
@@ -48,9 +48,7 @@ if (!$sort_style) {
     if ($user){
         $sort_style = $user->prefs->forum_sorting;
     } else {
-        if (isset($_COOKIE['sorting'])) {
-            list($sort_style,$thread_style)=explode("|",$_COOKIE['sorting']);
-        }
+        list($sort_style, $thread_style) = parse_forum_cookie();
     }
 } else {
     // set the sort style
@@ -58,8 +56,10 @@ if (!$sort_style) {
         $user->prefs->forum_sorting = $sort_style;
         $user->prefs->update("forum_sorting=$sort_style");
     } else {
-        list($old_style,$thread_style)=explode("|",$_COOKIE['sorting']);
-        send_cookie('sorting', implode("|",array($sort_style,$thread_style)), true);
+        list($old_style, $thread_style) = parse_forum_cookie();
+        send_cookie(
+            'sorting', implode("|", array($sort_style, $thread_style)), true
+        );
     }
 }
 
diff --git a/html/user/forum_search_action.php b/html/user/forum_search_action.php
index db4eecc809..fe594b4dd1 100644
--- a/html/user/forum_search_action.php
+++ b/html/user/forum_search_action.php
@@ -213,7 +213,7 @@ if (count($posts)){
     end_table();
 }
 
-if (!count($thread) && !count($posts)){
+if (!count($threads) && !count($posts)){
     echo "<p>".tra("Sorry, couldn't find anything matching your search query. You can try to broaden your search by using less words (or less specific words).")."</p>
     <p>"
     .tra("You can also %1try the same search on Google.%2",
diff --git a/html/user/forum_thread.php b/html/user/forum_thread.php
index 12db692094..c2f2e8a3b0 100644
--- a/html/user/forum_thread.php
+++ b/html/user/forum_thread.php
@@ -78,8 +78,8 @@ if ($temp_sort_style) {
     if ($logged_in_user){
         $logged_in_user->prefs->thread_sorting = $sort_style;
         $logged_in_user->prefs->update("thread_sorting=$sort_style");
-    } else if (array_key_exists('sorting', $_COOKIE)) {
-        list($forum_style, $old_style) = explode("|", $_COOKIE['sorting']);
+    } else {
+        list($forum_style, $old_style) = parse_forum_cookie();
     }
     send_cookie('sorting',
         implode("|", array($forum_style, $sort_style)),
@@ -89,8 +89,8 @@ if ($temp_sort_style) {
     // get the sorting style from the user or a cookie
     if ($logged_in_user){
         $sort_style = $logged_in_user->prefs->thread_sorting;
-    } else if (array_key_exists('sorting', $_COOKIE)) {
-        list($forum_style, $sort_style) = explode("|",$_COOKIE['sorting']);
+    } else {
+        list($forum_style, $sort_style) = parse_forum_cookie();
     }
 }
 
diff --git a/html/user/login_action.php b/html/user/login_action.php
index 20df8df095..ee82dd6a2b 100644
--- a/html/user/login_action.php
+++ b/html/user/login_action.php
@@ -55,7 +55,10 @@ if ($email_addr && $passwd) {
     }
     $authenticator = $user->authenticator;
     Header("Location: ".URL_BASE."$next_url");
-    $perm = $_POST['stay_logged_in'];
+    $perm = false;
+    if (isset($_POST['stay_logged_in'])) {
+        $perm = $_POST['stay_logged_in'];
+    }
     send_cookie('auth', $authenticator, $perm);
     exit();
 }
diff --git a/html/user/team_search.php b/html/user/team_search.php
index 3778695e8e..91aa5b0d2a 100644
--- a/html/user/team_search.php
+++ b/html/user/team_search.php
@@ -88,7 +88,7 @@ function show_list($list) {
     echo "</table>";
 }
 
-function show_teams_html($list) {
+function show_teams_html($list, $params) {
     page_head(tra("Team search results"));
     if (sizeof($list) == 0) {
         echo tra("No teams were found matching your criteria. Try another search.")
@@ -165,7 +165,7 @@ $user = get_logged_in_user(false);
 $submit = get_str("submit", true);
 $xml = get_str("xml", true);
 if ($submit || $xml) {
-    $params = null;
+    $params = new StdClass;
     $params->keywords = get_str('keywords', true);
     $params->country = get_str("country", true);
     $params->type = get_int("type", true);
@@ -174,7 +174,7 @@ if ($submit || $xml) {
     if ($xml) {
         show_teams_xml($list);
     } else {
-        show_teams_html($list);
+        show_teams_html($list, $params);
     }
 } else {
     page_head(tra("Find a team"), 'document.form.keywords.focus()');
@@ -182,7 +182,7 @@ if ($submit || $xml) {
         ."<p>"
         .tra("Use this form to find teams that might be right for you.")
         ."</p>\n";
-    team_search_form($params);
+    team_search_form(null);
     if (isset($_COOKIE['init'])) {
         echo "<p>
             ".tra("%1I'm not interested%2 in joining a team right now.", "<a href=home.php>", "</a>");