diff -crB slim-1.3.0.orig/app.cpp slim-1.3.0/app.cpp
*** slim-1.3.0.orig/app.cpp	2007-07-15 16:09:28.000000000 +0200
--- slim-1.3.0/app.cpp	2008-07-06 20:48:21.000000000 +0200
***************
*** 136,141 ****
--- 136,142 ----
      testing = false;
      mcookie = "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
      Dpy = NULL;
+     firstTime = true;
  
      // Parse command line
      while((tmp = getopt(argc, argv, "vhp:d?")) != EOF) {
***************
*** 308,313 ****
--- 309,328 ----
      // Create panel
      LoginPanel = new Panel(Dpy, Scr, Root, cfg, themedir);
  
+     // try to autologin
+     if ((cfg->getOption("default_user") != "") && 
+         (cfg->getOption("auto_login_du") == "true") &&
+ 	(firstTime))
+     {
+         firstTime = false;
+         LoginPanel->SetName(cfg->getOption("default_user"));
+ #ifdef USE_PAM
+         pam.set_item(PAM::Authenticator::User, cfg->getOption("default_user").c_str());
+ #endif
+ 
+ 	Login();
+     }
+ 
      // Start looping
      int panelclosed = 1;
      Panel::ActionType Action;
diff -crB slim-1.3.0.orig/app.h slim-1.3.0/app.h
*** slim-1.3.0.orig/app.h	2007-07-15 16:09:28.000000000 +0200
--- slim-1.3.0/app.h	2008-07-05 16:09:27.000000000 +0200
***************
*** 99,104 ****
--- 99,106 ----
      
      std::string themeName;
      std::string mcookie;
+ 
+     bool firstTime;
  };
  
  
diff -crB slim-1.3.0.orig/cfg.cpp slim-1.3.0/cfg.cpp
*** slim-1.3.0.orig/cfg.cpp	2007-07-15 16:09:28.000000000 +0200
--- slim-1.3.0/cfg.cpp	2008-07-05 14:53:59.000000000 +0200
***************
*** 43,48 ****
--- 43,49 ----
      options.insert(option("screenshot_cmd","import -window root /slim.png"));
      options.insert(option("welcome_msg","Welcome to %host"));
      options.insert(option("default_user",""));
+     options.insert(option("auto_login_du","false"));
      options.insert(option("current_theme","default"));
      options.insert(option("lockfile","/var/run/slim.lock"));
      options.insert(option("logfile","/var/log/slim.log"));
diff -crB slim-1.3.0.orig/slim.conf slim-1.3.0/slim.conf
*** slim-1.3.0.orig/slim.conf	2007-07-15 16:09:28.000000000 +0200
--- slim-1.3.0/slim.conf	2008-07-05 16:51:55.000000000 +0200
***************
*** 66,71 ****
--- 66,72 ----
  # default user, leave blank or remove this line
  # for avoid pre-loading the username.
  #default_user        simone
+ #auto_login_du       true
  
  # current theme, use comma separated list to specify a set to 
  # randomly choose from
Only in slim-1.3.0: slim.patch