diff -ru otrs.orig/Kernel/System/AuthSession/DB.pm otrs/Kernel/System/AuthSession/DB.pm
--- otrs.orig/Kernel/System/AuthSession/DB.pm	2004-02-13 08:50:36.000000000 +0800
+++ otrs/Kernel/System/AuthSession/DB.pm	2004-09-01 11:56:39.000000000 +0800
@@ -84,7 +84,7 @@
     }
     # check session time
     my $MaxSessionTime = $Self->{ConfigObject}->Get('SessionMaxTime');
-    if ( (time() - $MaxSessionTime) >= $Data{UserSessionStart} ) {
+    if ( (time() - $MaxSessionTime) >= $Data{UserSessionLastTime} ) {
          $Kernel::System::AuthSession::CheckSessionID = 'Session has timed out. Please log in again.';
          $Self->{LogObject}->Log(
           Priority => 'notice',
@@ -97,6 +97,8 @@
         }
         return;
     }
+    # update session time
+    $Self->UpdateSessionID(SessionID => $SessionID, Key => 'UserSessionLastTime', Value => time());
     return 1;
 }
 # --
@@ -167,6 +169,7 @@
       }
     }
     $DataToStore .= "UserSessionStart:" . encode_base64(time(), '') .":;";
+    $DataToStore .= "UserSessionLastTime:" . encode_base64(time(), '') .":;";
     $DataToStore .= "UserRemoteAddr:" . encode_base64($RemoteAddr, '') .":;";
     $DataToStore .= "UserRemoteUserAgent:". encode_base64($RemoteUserAgent, '') .":;";
     # store SessionID + data
@@ -212,6 +215,8 @@
     }
     # update the value 
     $SessionData{$Key} = $Value; 
+    # update the last time
+    $SessionData{"UserSessionLastTime"} = time();
     # set new data sting
     my $NewDataToStore = '';
     foreach (keys %SessionData) {
diff -ru otrs.orig/Kernel/System/AuthSession/FS.pm otrs/Kernel/System/AuthSession/FS.pm
--- otrs.orig/Kernel/System/AuthSession/FS.pm	2003-10-30 04:22:08.000000000 +0800
+++ otrs/Kernel/System/AuthSession/FS.pm	2004-09-01 11:57:02.000000000 +0800
@@ -77,7 +77,7 @@
     }
     # check session time
     my $MaxSessionTime = $Self->{ConfigObject}->Get('SessionMaxTime');
-    if ( (time() - $MaxSessionTime) >= $Data{UserSessionStart} ) {
+    if ( (time() - $MaxSessionTime) >= $Data{UserSessionLastTime} ) {
          $Kernel::System::AuthSession::CheckSessionID = 'Session has timed out. Please log in again.';
          $Self->{LogObject}->Log(
           Priority => 'notice',
@@ -90,6 +90,8 @@
         }
         return;
     }
+    # update session time
+    $Self->UpdateSessionID(SessionID => $SessionID, Key => 'UserSessionLastTime', Value => time());
     return 1;
 }
 # --
@@ -149,6 +151,7 @@
         }
     }
     $DataToStore .= "UserSessionStart:". encode_base64(time(), '') ."\n";
+    $DataToStore .= "UserSessionLastTime:". encode_base64(time(), '') ."\n";
     $DataToStore .= "UserRemoteAddr:". encode_base64($RemoteAddr, '') ."\n";
     $DataToStore .= "UserRemoteUserAgent:". encode_base64($RemoteUserAgent, '') ."\n";
     # store SessionID + data
@@ -192,6 +195,8 @@
     my %SessionData = $Self->GetSessionIDData(SessionID => $SessionID);
     # update the value 
     $SessionData{$Key} = $Value; 
+    # update time
+    $SessionData{"UserSessionLastTime"} = time();
     # set new data sting
     my $NewDataToStore = '';
     foreach (keys %SessionData) {
diff -ru otrs.orig/Kernel/System/AuthSession/IPC.pm otrs/Kernel/System/AuthSession/IPC.pm
--- otrs.orig/Kernel/System/AuthSession/IPC.pm	2003-10-30 04:21:35.000000000 +0800
+++ otrs/Kernel/System/AuthSession/IPC.pm	2004-09-01 11:56:51.000000000 +0800
@@ -161,7 +161,7 @@
     }
     # check session time
     my $MaxSessionTime = $Self->{ConfigObject}->Get('SessionMaxTime');
-    if ( (time() - $MaxSessionTime) >= $Data{UserSessionStart} ) {
+    if ( (time() - $MaxSessionTime) >= $Data{UserSessionLastTime} ) {
          $Kernel::System::AuthSession::CheckSessionID = 'Session has timed out. Please log in again.';
          $Self->{LogObject}->Log(
           Priority => 'notice',
@@ -174,6 +174,8 @@
         }
         return;
     }
+    # update session time
+    $Self->UpdateSessionID(SessionID => $SessionID, Key => 'UserSessionLastTime', Value => time());
     return 1;
 }
 # --
@@ -239,6 +241,7 @@
         }
     }
     $DataToStore .= "UserSessionStart:". encode_base64(time(), '') .";";
+    $DataToStore .= "UserSessionLastTime:". encode_base64(time(), '') .";";
     $DataToStore .= "UserRemoteAddr:". encode_base64($RemoteAddr, '') .";";
     $DataToStore .= "UserRemoteUserAgent:". encode_base64($RemoteUserAgent, '') .";\n";
     # read old session data (the rest)
@@ -299,6 +302,8 @@
     else {
         delete $SessionData{$Key};
     }
+    # update time
+    $SessionData{"UserSessionLastTime"} = time();
     # set new data sting
     my $NewDataToStore = "SessionID:". encode_base64($SessionID, '').";";
     foreach (keys %SessionData) {
diff -ru otrs.orig/bin/DeleteSessionIDs.pl otrs/bin/DeleteSessionIDs.pl
--- otrs.orig/bin/DeleteSessionIDs.pl	2003-02-08 23:05:11.000000000 +0800
+++ otrs/bin/DeleteSessionIDs.pl	2004-09-01 11:57:24.000000000 +0800
@@ -85,7 +85,7 @@
     foreach my $SessionID (@List) {
         my %SessionData = $CommonObject{SessionObject}->GetSessionIDData(SessionID => $SessionID);
         my $MaxSessionTime = $CommonObject{ConfigObject}->Get('SessionMaxTime');
-        my $ValidTime = ($SessionData{UserSessionStart} + $MaxSessionTime) - time();
+        my $ValidTime = ($SessionData{UserSessionLastTime} + $MaxSessionTime) - time();
         if ($ValidTime >= 0) {
             print " SessionID $SessionID valid (till ". int(($ValidTime/60)) ." minutes).\n";
         }