diff --git a/lib/authentication/Authenticator.inc b/lib/authentication/Authenticator.inc
index 9cd5f5f..7b56946 100644
--- a/lib/authentication/Authenticator.inc
+++ b/lib/authentication/Authenticator.inc
@@ -35,7 +35,7 @@ class Authenticator {
      * @return array containing userID and authentication status code
      */
     function login($sUserName, $sPassword) {
-        global $default, $lang_err_database;
+        global $default;
         // initialise return array
         $aUserDetails = array();
 
diff --git a/lib/authentication/DBAuthenticator.inc b/lib/authentication/DBAuthenticator.inc
index c3c952e..3915366 100644
--- a/lib/authentication/DBAuthenticator.inc
+++ b/lib/authentication/DBAuthenticator.inc
@@ -45,7 +45,6 @@ class DBAuthenticator extends Authenticator {
                 return false;
             }
         } else {
-            $_SESSION["errorMessage"] = $lang_err_database;
             return false;
         }
     }
@@ -58,7 +57,7 @@ class DBAuthenticator extends Authenticator {
      * @return array containing the users found
      */ 
     function getUser($sUserName, $aAttributes) {
-        global $default, $lang_err_database;
+        global $default;
 
         $sql = $default->db;
         $sQuery = "SELECT ";
@@ -77,7 +76,6 @@ class DBAuthenticator extends Authenticator {
             }
             return $aUserResults;
         } else {
-            $_SESSION["errorMessage"] = $lang_err_database;
             return false;
         }
     }
@@ -90,7 +88,7 @@ class DBAuthenticator extends Authenticator {
      * @return array containing the users found
      */
     function searchUsers($sUserNameSearch, $aAttributes) {
-        global $default, $lang_err_database;
+        global $default;
 
         $sql = $default->db;
         $sQuery = "SELECT ";
@@ -110,7 +108,6 @@ class DBAuthenticator extends Authenticator {
             }
             return $aUserResults;
         } else {
-            $_SESSION["errorMessage"] = $lang_err_database;
             return false;
         }
     }
diff --git a/lib/discussions/DiscussionComment.inc b/lib/discussions/DiscussionComment.inc
index 30e97a9..e3df497 100644
--- a/lib/discussions/DiscussionComment.inc
+++ b/lib/discussions/DiscussionComment.inc
@@ -163,10 +163,8 @@ class DiscussionComment {
                 $oDiscussionComment->dDate = $sql->f("date");
                 return $oDiscussionComment;
             }
-            $_SESSION["errorMessage"] = $lang_err_object_not_exist . "id = " . $iNewCommentID . " table = $default->discussion_comments_table";
             return false;
         }
-        $_SESSION["errorMessage"] = $lang_err_database;
         return false;
     }
     
@@ -204,16 +202,14 @@ class DiscussionComment {
 	          	$this->iId = $sql->insert_id();
 	         	return true;                    
 	        }
-	        $_SESSION["errorMessage"] = $lang_err_database;
 	        return false;    
             
         }
-        $_SESSION["errorMessage"] = $lang_err_object_exists . "id = " . $this->iId . " table = $default->units_table";
         return false;	
     }
     
     function update(){    	
-    	global $default, $lang_err_database, $lang_err_object_key;
+    	global $default;
         //only update if the object has been stored
         if ($this->iId > 0) {
             $sql = $default->db;
@@ -230,15 +226,13 @@ class DiscussionComment {
             if ($result) {           
      	       return true;
             }
-            $_SESSION["errorMessage"] = $lang_err_database;
             return false;
         }
-        $_SESSION["errorMessage"] = $lang_err_object_key;
         return false;
     }
     
 	function delete(){
-		global $default, $lang_err_database, $lang_err_object_key;
+		global $default;
 		  
 		// only delete the object if it exists in the database
 		if ($this->iId > 0) {
@@ -250,7 +244,6 @@ class DiscussionComment {
 			
 			if ($rows > 1) {
 				// duplicate Thread exists
-				$_SESSION["errorMessage"] = "Thread::The Thread id " . $this->iId . " has duplicates!";
 				return false;
 			} else {
 				$sql = $default->db;
@@ -258,11 +251,9 @@ class DiscussionComment {
 				if ($result) {
 					return true;
 				}
-				$_SESSION["errorMessage"] = $lang_err_database;
 				return false;
 			}
 		}
-		$_SESSION["errorMessage"] = $lang_err_object_key;
 		return false;
 	}   
 }
diff --git a/lib/discussions/DiscussionThread.inc b/lib/discussions/DiscussionThread.inc
index ed5c795..1591361 100644
--- a/lib/discussions/DiscussionThread.inc
+++ b/lib/discussions/DiscussionThread.inc
@@ -159,7 +159,6 @@ class DiscussionThread {
 	            }
 	            return $sAllCommentID ;            
 	        }
-	        $_SESSION["errorMessage"] = $lang_err_database;
 	        return false;
         } else {
          // No Thread for document
@@ -201,10 +200,8 @@ class DiscussionThread {
                 	return "false";
                 }
             }
-            $_SESSION["errorMessage"] = $lang_err_object_not_exist . "Document_id = " . $iDocumentID . " table = $default->discussion_threads_table";
             return false;
         }
-        $_SESSION["errorMessage"] = $lang_err_database;
         return false;
     }
     
@@ -234,10 +231,8 @@ class DiscussionThread {
                 $oDiscussionThread->iNumberOfReplies = $sql->f("replies");
                 return $oDiscussionThread;
             }
-            $_SESSION["errorMessage"] = $lang_err_object_not_exist . "id = " . $iNewThreadID . " table = $default->discussion_threads_table";
             return false;
         }
-        $_SESSION["errorMessage"] = $lang_err_database;
         return false;
     }
 
@@ -247,7 +242,6 @@ class DiscussionThread {
     function create(){
         global $default, $lang_err_database, $lang_err_object_exists;
         //if the object hasn't been created
-        $sQuery = "what the hell";
         if ($this->iId < 0) { //check to see if entry exists
 	        $sql = $default->db;
 	        $sQuery = 	"INSERT INTO " . $default->discussion_threads_table . 
@@ -259,10 +253,9 @@ class DiscussionThread {
 	        	$this->iId = $sql->insert_id();
 	         	return true;                    
 	        }
-	        $_SESSION["errorMessage"] = $lang_err_database;
 	        return  false;        	
         }
-        $_SESSION["errorMessage"] = $lang_err_object_exists . "id = " . $this->iId . " table = $default->discussion_threads_table";
+
         return false;
     }
     
@@ -288,10 +281,8 @@ class DiscussionThread {
             if ($result) {           
      	       return true;
             }
-            $_SESSION["errorMessage"] = $lang_err_database;
             return false;
         }
-        $_SESSION["errorMessage"] = $lang_err_object_key;
         return false;
     }
     
@@ -300,7 +291,7 @@ class DiscussionThread {
    	 * Delete a thread in the table
    	 */
    	function delete(){
-    	 global $default, $lang_err_database, $lang_err_object_key;
+    	 global $default;
         
         //only delete the object if it exists in the database
         if ($this->iId > 0) {
@@ -321,11 +312,9 @@ class DiscussionThread {
                 if ($result) {
                     return true;
                 }
-                $_SESSION["errorMessage"] = $lang_err_database;
                 return false;
             }
         }
-        $_SESSION["errorMessage"] = $lang_err_object_key;
         return false;
     }    
 }