(gnus-summary-select-article nil t)
     ))
 
+(set-alist 'mime-raw-buffer-coding-system-alist
+          'gnus-original-article-mode
+          'raw-text)
+
 (set-alist 'mime-view-content-header-filter-alist
           'gnus-original-article-mode
-          (function gnus-content-header-filter))
+          #'gnus-content-header-filter)
 
 (set-alist 'mime-text-decoder-alist
           'gnus-original-article-mode
-          (function mime-text-decode-buffer))
+          #'mime-text-decode-buffer)
 
 (set-alist 'mime-preview-quitting-method-alist
           'gnus-original-article-mode