diff -u /home/guerry/elisp/testing/org/org.el /home/guerry/elisp/testing/bzg/org.el
--- /home/guerry/elisp/testing/org/org.el	2007-10-22 15:04:16.000000000 +0100
+++ /home/guerry/elisp/testing/bzg/org.el	2007-10-22 23:06:42.000000000 +0100
@@ -14143,7 +14143,8 @@
 		      'keymap org-agenda-keymap
 		      'help-echo
 		      (format "mouse-2 or RET jump to org file %s"
-			      (abbreviate-file-name buffer-file-name))))
+			      (abbreviate-file-name 
+			       (or buffer-file-name (buffer-name))))))
 	 (case-fold-search nil)
          lspos
 	 tags tags-list tags-alist (llast 0) rtn level category i txt

Diff finished.  Mon Oct 22 23:06:50 2007