Index: src/ical-code.c
===================================================================
--- src/ical-code.c	(revision 25298)
+++ src/ical-code.c	(working copy)
@@ -83,10 +83,13 @@
 static icalcomponent *ical = NULL,
                      *aical = NULL;
 
+static time_t ical_last_change = (time_t)0;
+
 typedef struct _foreign_ical_files
 {;
     icalset *fical;
     icalcomponent *ical;
+    time_t ical_last_change;
 } foreign_ical_files;
 
 static foreign_ical_files f_ical[10];
@@ -3532,3 +3535,66 @@
     gtk_widget_destroy(window);
     return(changed);
 }
+
+static gboolean xfical_refresher_run(gpointer user_data)
+{
+    struct stat s;
+    gint i;
+    gboolean changes_present = FALSE;
+
+
+    /* check internal file */
+    if (stat(g_par.orage_file, &s) < 0) {
+        g_warning("stat of %s failed: %d (%s)",
+                    g_par.orage_file, errno, strerror(errno));
+    }
+    else if (s.st_mtime > ical_last_change) {
+        ical_last_change = s.st_mtime;
+        orage_message("updating %s", g_par.orage_file);  
+        changes_present = TRUE;
+    }
+
+    /* check foreign files */
+    for (i = 0; i < g_par.foreign_count; i++) {
+        if (stat(g_par.foreign_data[i].file, &s) < 0) {
+            g_warning("stat of %s failed: %d (%s)",
+                        g_par.foreign_data[i].file, errno, strerror(errno));
+        }
+        else if (s.st_mtime > f_ical[i].ical_last_change) {
+            f_ical[i].ical_last_change = s.st_mtime;
+            orage_message("updating %s", g_par.foreign_data[i].file);  
+            changes_present = TRUE;
+        }
+    }
+    
+    if (changes_present == TRUE) {
+        xfical_alarm_build_list(FALSE);
+        orage_mark_appointments();
+    }
+
+    /* keep running */
+    return (TRUE);
+}
+
+void xfical_init_refresher(void)
+{
+    static gint refresher_timeout_id = -1;
+    gint i = 0;
+
+    if (refresher_timeout_id != -1) {
+        g_warning("refresher already initialized");
+        return;
+    }
+    
+    /* init mtimes so that we don't do a useless update
+     * at start 
+     */
+    ical_last_change = time(NULL);
+    for (i = 0; i < g_par.foreign_count; i++) {
+        f_ical[i].ical_last_change = time(NULL);
+    }
+    
+    refresher_timeout_id = g_timeout_add(60*1000,
+                                    xfical_refresher_run,
+                                    NULL);
+}
Index: src/main.c
===================================================================
--- src/main.c	(revision 25298)
+++ src/main.c	(working copy)
@@ -545,6 +545,9 @@
     initialized = TRUE;
     process_args(argc, argv, running, initialized);
 
+    /* start files refresher timeout */
+    xfical_init_refresher();
+
     gtk_main();
     keep_tidy();
     return(EXIT_SUCCESS);
Index: src/ical-code.h
===================================================================
--- src/ical-code.h	(revision 25298)
+++ src/ical-code.h	(working copy)
@@ -135,4 +135,6 @@
         , gchar **tz);
 
 gboolean xfical_file_check(gchar *file_name);
+
+void xfical_init_refresher(void);
 #endif /* !__ICAL_CODE_H__ */