Index: umit/merger/nt_appdata.py
===================================================================
--- umit/merger/nt_appdata.py	(revision 5850)
+++ umit/merger/nt_appdata.py	(working copy)
@@ -51,7 +51,11 @@
         if os.path.exists(old_path):
             # Move the old ~/.umit to ~/.umit_backup so next time this
             # merger runs it will notice the absence of ~/.umit
-            shutil.move(old_path, backup_path)
+            # If UmitWeb is an old version, it will keep ~/.umit alive 
+            if os.path.exists(os.path.join(old_path, "umitweb.log")):
+                shutil.copytree(backup_path, new_path)
+            else:
+                shutil.move(old_path, backup_path)
 
             new_path = os.path.join(BasePaths.HOME, BasePaths.UMIT_CFG_DIR)
             if os.path.exists(new_path):