--- ispell.el.orig0	2005-12-20 15:06:29.000000000 +0100
+++ ispell.el	2006-01-09 13:22:27.000000000 +0100
@@ -2504,7 +2504,8 @@
       (setq ispell-filter nil ispell-filter-continue nil)
     ;; may need to restart to select new personal dictionary.
     (ispell-kill-ispell t)
-    (message "Starting new Ispell process...")
+    (message "Starting new Ispell process [%s] ..."
+	     (or ispell-local-dictionary ispell-dictionary "default"))
     (sit-for 0)
     (setq ispell-library-directory (ispell-check-version)
 	  ispell-process-directory default-directory
@@ -2619,6 +2620,14 @@
 	       (setq ispell-local-dictionary dict)
 	       (setq ispell-local-dictionary-overridden t))
 	   (error "Undefined dictionary: %s" dict))
+	 ;; For global setting clear out flyspell word cache when needed
+         (when (and arg
+		    (featurep 'flyspell))
+	   (dolist (buf (buffer-list))
+	     (with-current-buffer buf
+	       (when flyspell-mode
+		 (setq flyspell-word-cache-word nil)))))
+	 (ispell-internal-change-dictionary)
 	 (message "%s Ispell dictionary set to %s"
 		  (if arg "Global" "Local")
 		  dict))))
@@ -2630,8 +2639,13 @@
   (let ((dict (or ispell-local-dictionary ispell-dictionary)))
     (unless (equal ispell-current-dictionary dict)
       (ispell-kill-ispell t)
-      (setq ispell-current-dictionary dict))))
-
+      (setq ispell-current-dictionary dict)
+      ;; If needed, start ispell process and clear out flyspell word cache
+      (when (featurep 'flyspell)
+	(setq flyspell-last-buffer nil) ;; re-read buffer-local-defs
+	(when flyspell-mode
+	  (ispell-init-process)
+	  (setq flyspell-word-cache-word nil))))))
 
 ;;; Spelling of comments are checked when ispell-check-comments is non-nil.