Index: calendar-sources.c
===================================================================
--- calendar-sources.c	(revision 10943)
+++ calendar-sources.c	(working copy)
@@ -429,6 +429,10 @@
 {
   const char *uristr;
 
+  /* As far as I know if the source data isn't loaded we don't
+     care if the backend dies */
+  if (!source_data->loaded)
+    return;
   source_data->clients = g_slist_remove (source_data->clients, client);
   if (g_slist_length (source_data->clients) < 1) 
     {
