--- a/.emacs-my	Sun Dec 27 14:00:42 2009 +0200
+++ b/.emacs-my	Mon Dec 28 19:03:58 2009 +0200
@@ -184,7 +184,10 @@
 
 ;; ----------------------------------------------------------------------
 ;; Completition
-(partial-completion-mode t) ; For example, M-x p-c-m expands to M-x partial-completion-mode
+
+;; partial-completion-mode cause bug in read-file-name with Emacs v22.3.1 (but not with v23.1).
+;; read-file-name used in rgrep, so I disable partial-completion-mode.
+(partial-completion-mode nil) ; For example, M-x p-c-m expands to M-x partial-completion-mode
 
 ;; ----------------------------------------------------------------------
 ;; Mouse