=== modified file 'bin/modules/gui/main.py'
--- bin/modules/gui/main.py	2009-06-26 06:16:39 +0000
+++ bin/modules/gui/main.py	2009-07-31 20:12:34 +0000
@@ -1410,7 +1410,10 @@
         if not db_name:
             return
         filename = common.file_selection(_('Save As...'),
-                action=gtk.FILE_CHOOSER_ACTION_SAVE, parent=self.window, preview=False)
+                action=gtk.FILE_CHOOSER_ACTION_SAVE, 
+                parent=self.window, 
+                preview=False,
+                filename='%s_%s.backup' % (db_name, time.strftime('%Y%m%d_%H%M'),))
 
         if filename:
             try: