diff --git a/root/includes/acp/acp_portal.php b/root/includes/acp/acp_portal.php
index 15894c0d..a3af8a0c 100644
--- a/root/includes/acp/acp_portal.php
+++ b/root/includes/acp/acp_portal.php
@@ -166,6 +166,7 @@ class acp_portal
 				{
 					if (confirm_box(true))
 					{
+                        // @todo: handle possible error if selected module_id doesn't exist
 						$sql_ary = array(
 							'module_name'		=> $c_class->name,
 							'module_image_src'	=> $c_class->image_src,
@@ -244,6 +245,7 @@ class acp_portal
 				{
 					$module_permission = request_var('permission-setting', array(0 => ''));
 					$groups_ary = array();
+					$img_error = '';
 					
 					// get groups and check if the selected groups actually exist
 					$sql = 'SELECT group_id
@@ -274,7 +276,7 @@ class acp_portal
 					}
 					
 					// check if module image file actually exists
-					check_file_src($sql_ary['module_image_src'], '', $module_id);
+					$img_error = check_file_src($sql_ary['module_image_src'], '', $module_id, false);
 
 					$sql = 'UPDATE ' . PORTAL_MODULES_TABLE . '
 						SET ' . $db->sql_build_array('UPDATE', $sql_ary) . '
@@ -285,13 +287,13 @@ class acp_portal
 					$cache->destroy('sql', CONFIG_TABLE);
 					if(isset($module_name))
 					{
-						add_log('admin', 'LOG_PORTAL_CONFIG',$module_name);
+						add_log('admin', 'LOG_PORTAL_CONFIG', $module_name);
 					}
 					else
 					{
 						add_log('admin', 'LOG_PORTAL_CONFIG', $user->lang['ACP_PORTAL_' . strtoupper($mode) . '_INFO']);
 					}
-					trigger_error($user->lang['CONFIG_UPDATED'] . adm_back_link(($module_id) ? append_sid("{$phpbb_root_path}adm/index.$phpEx", 'i=portal&mode=modules') : $this->u_action));
+					trigger_error($user->lang['CONFIG_UPDATED'] . ((!empty($img_error) ? '<br /><br />' . $user->lang['MODULE_IMAGE_ERROR'] . '<br />' . $img_error : '')) . adm_back_link(($module_id) ? append_sid("{$phpbb_root_path}adm/index.$phpEx", 'i=portal&amp;mode=modules') : $this->u_action));
 				}
 
 				// show custom HTML files on the settings page of the modules instead of the standard board3 portal one, if chosen by module
@@ -488,6 +490,10 @@ class acp_portal
 						{
 							$move_action = 2; // we move 2 columns to the right
 						}
+                        else
+                        {
+                            // @todo: need an error handle here
+                        }
 						
 						/**
 						* moving only 1 column to the right means we will either end up in the right column
@@ -590,6 +596,10 @@ class acp_portal
 						{
 							$move_action = 2; // we move 2 columns to the left
 						}
+                        else
+                        {
+                            // @todo: need an error handle here (i.e. trigger_error())
+                        }
 						
 						/**
 						* moving only 1 column to the left means we will either end up in the left column
@@ -816,7 +826,7 @@ class acp_portal
 									$error_output = $cur_error . '<br />';
 								}
 							}
-							else if($error != false)
+							else
 							{
 								$error_output = $error;
 							}
diff --git a/root/language/de/mods/info_acp_portal.php b/root/language/de/mods/info_acp_portal.php
index 002190fb..67906d8c 100644
--- a/root/language/de/mods/info_acp_portal.php
+++ b/root/language/de/mods/info_acp_portal.php
@@ -73,6 +73,7 @@ $lang = array_merge($lang, array(
 	'MODULE_RESET_EXP'			=> 'Dies wird alle Einstellungen des Moduls auf die Standardeinstellungen zurücksetzen!',
 	'MODULE_STATUS'				=> 'Aktiviere Modul',
 	'MODULE_ADD_ONCE'			=> 'Diese Modul kann nur ein Mal hinzugefügt werden.',
+	'MODULE_IMAGE_ERROR'		=> 'Während dem Prüfen des Modul Bildes sind ein oder mehrere Fehler aufgetreten:',
 	
 	// general
 	'ACP_PORTAL'							=> 'Portal',
diff --git a/root/language/en/mods/info_acp_portal.php b/root/language/en/mods/info_acp_portal.php
index addadf53..7ffcf694 100755
--- a/root/language/en/mods/info_acp_portal.php
+++ b/root/language/en/mods/info_acp_portal.php
@@ -72,6 +72,7 @@ $lang = array_merge($lang, array(
 	'MODULE_RESET_EXP'			=> 'This will reset all settings to the default!',
 	'MODULE_STATUS'				=> 'Enable module',
 	'MODULE_ADD_ONCE'			=> 'This module can only be added once.',
+	'MODULE_IMAGE_ERROR'		=> 'There was an error while checking for the module image:',
 
 	// general
 	'ACP_PORTAL'							=> 'Portal',
diff --git a/root/portal/includes/functions.php b/root/portal/includes/functions.php
index 72f6b597..716f17fb 100644
--- a/root/portal/includes/functions.php
+++ b/root/portal/includes/functions.php
@@ -100,7 +100,7 @@ function phpbb_fetch_posts($module_id, $forum_from, $permissions, $number_of_pos
 {
 	global $db, $phpbb_root_path, $auth, $user, $bbcode_bitfield, $bbcode, $portal_config, $config;
 
-	$posts = array();
+	$posts = $update_count = array();
 	$post_time = ($time == 0) ? '' : 'AND t.topic_time > ' . (time() - $time * 86400);
 	$forum_from = (strpos($forum_from, ',') !== FALSE) ? explode(',', $forum_from) : (($forum_from != '') ? array($forum_from) : array());
 	$str_where = '';
@@ -174,6 +174,11 @@ function phpbb_fetch_posts($module_id, $forum_from, $permissions, $number_of_pos
 			$post_link = ($config['board3_news_style_' . $module_id]) ? 't.topic_first_post_id = p.post_id' : (($config['board3_news_show_last_' . $module_id]) ? 't.topic_last_post_id = p.post_id' : 't.topic_first_post_id = p.post_id' ) ;
 			$topic_order = ($config['board3_news_show_last_' . $module_id]) ? 't.topic_last_post_time DESC' : 't.topic_time DESC' ;
 		break;
+
+        default:
+            $topic_type = $str_where = $user_link = $post_link = '';
+            $topic_order = 't.topic_time DESC';
+            // maybe use trigger_error here, as this shouldn't happen
 	}
 
 	if ($type == 'announcements' && $global_f < 1)
@@ -440,6 +445,11 @@ function generate_portal_pagination($base_url, $num_items, $per_page, $start_ite
 			$pagination_type = 'np';
 			$anker = '#n';
 		break;
+
+        default:
+            // this shouldn't happend @todo: use trigger_error()
+            $pagination_type = 'ap';
+            $anker = '#a';
 	}
 
 	// Make sure $per_page is a valid value
@@ -631,11 +641,13 @@ function get_portal_tracking_info($fetch_news)
 				}
 				$db->sql_freeresult($result);
 
+                // @todo: do not use $current_forum here as this is already used by the outside foreach
 				foreach($forum_ids as $current_forum)
 				{
 					$user_lastmark[$current_forum] = (isset($mark_time[$current_forum])) ? $mark_time[$current_forum] : $user->data['user_lastmark'];
 				}
 
+                // @todo: also check if $user_lastmark has been defined for this specific forum_id
 				foreach ($topic_ids as $topic_id)
 				{
 					$last_read[$topic_id] = (!isset($last_read[$topic_id]) || $user_lastmark[$rev_forum_ids[$topic_id]] > $last_read[$topic_id]) ? $user_lastmark[$rev_forum_ids[$topic_id]] : $last_read[$topic_id];
@@ -821,7 +833,7 @@ function board3_basic_install($mode = 'install', $purge_modules = true, $u_actio
 /**
 * check if the entered source file actually exists
 */
-function check_file_src($value, $key, $module_id)
+function check_file_src($value, $key, $module_id, $force_error = true)
 {
 	global $db, $phpbb_root_path, $phpEx, $user;
 	
@@ -846,6 +858,17 @@ function check_file_src($value, $key, $module_id)
 	
 	if (!empty($error))
 	{
-		trigger_error($error . adm_back_link(append_sid("{$phpbb_root_path}adm/index.$phpEx", 'i=portal&amp;mode=config&amp;module_id=' . $module_id)), E_USER_WARNING );
+		if ($force_error)
+		{
+			trigger_error($error . adm_back_link(append_sid("{$phpbb_root_path}adm/index.$phpEx", 'i=portal&amp;mode=config&amp;module_id=' . $module_id)), E_USER_WARNING );
+		}
+		else
+		{
+			return $error;
+		}
+	}
+	else
+	{
+		return false;
 	}
 }
diff --git a/root/portal/includes/functions_modules.php b/root/portal/includes/functions_modules.php
index 2b992031..2ac1622f 100644
--- a/root/portal/includes/functions_modules.php
+++ b/root/portal/includes/functions_modules.php
@@ -26,6 +26,8 @@ function column_num_string($column)
 			return 'top';
 		case 5:
 			return 'bottom';
+        default:
+            return 0;
 	}
 }