diff -Naur comm-1.9.2/mail/components/preferences/advanced.js comm-1.9.2-magellan/mail/components/preferences/advanced.js
--- comm-1.9.2/mail/components/preferences/advanced.js	2010-07-13 23:22:45.000000000 +0200
+++ comm-1.9.2-magellan/mail/components/preferences/advanced.js	2010-07-21 14:22:10.000000000 +0200
@@ -241,7 +241,7 @@
     var enabledPref = document.getElementById("app.update.enabled");
     var enableAppUpdate = document.getElementById("enableAppUpdate");
 
-    enableAppUpdate.disabled = !aus.canCheckForUpdates || enabledPref.locked;
+    enableAppUpdate.disabled = true;
   },
 
   updateAutoItems: function () 
@@ -252,8 +252,7 @@
     var updateModeLabel = document.getElementById("updateModeLabel");
     var updateMode = document.getElementById("updateMode");
 
-    var disable = enabledPref.locked || !enabledPref.value ||
-                  autoPref.locked;
+    var disable = true;
     updateModeLabel.disabled = updateMode.disabled = disable;
   },
 
@@ -265,8 +264,7 @@
 
     var warnIncompatible = document.getElementById("warnIncompatible");
 
-    var disable = enabledPref.locked || !enabledPref.value || autoPref.locked ||
-                  !autoPref.value || modePref.locked;
+    var disable = true;
     warnIncompatible.disabled = disable;
   },