suppress creating the directory update record for profile updates which are part of the normal import_xchan sequence - otherwise we get two for every change. Create it normally if we are called with a profile_update message and don't go through the whole import_xchan thing.

include/config.php

@@ -24,6 +24,15 @@ function load_config($family) {
 	if(! array_key_exists('config_loaded',$a->config[$family])) {
 
 		$r = q("SELECT * FROM config WHERE cat = '%s'", dbesc($family));
+
+		// This is often one of the earliest database calls in the life of the page.
+		// If the DB was successfully opened, but we can't read from it, 
+		// we must assume catastrophic failure of the DB. Report the system down.
+
+		if($r === false) {
+			system_unavailable();
+		}
+
 		if($r !== false) {
 			if($r) {
 				foreach($r as $rr) {