crypt++.el and folding.el

This error only occurs with xemacs: - XEmacs 21.2 (beta18) "Toshima" [Lucid] (i586-pc-win32) of Thu Jul 15 1999 on NEVERYON) - crypt++.el v2.87 (from ftp://ftp.cs.umb.edu/pub/misc/crypt++.el) - folding.el v2.61 (from ftp://ftp.csd.uu.se/pub/users/andersl/beta/folding.el). When I find an encrypted file that uses folding mode, I get following error: Signaling: (error "Cannot fold whole buffer -- extraneous end-fold mark") signal(error ("Cannot fold whole buffer -- extraneous end-fold mark")) byte-code("..." [kill-buffer buf signal data] 3) find-file-noselect("c:\\notes") ad-Orig-find-file("c:\\notes" nil) (setq ad-return-value (ad-Orig-find-file filename codesys)) ) (let (ad-return-value) (setq ad-return-value (ad-Orig-find-file filename codesys)) ad-return-value) ) find-file("c:\\notes") #<compiled-function (&optional filename) "...(100)" [ffap-require-prefix current-prefix-arg nil call-interactively ffap-file-finder filename ffap-prompter string t case-fold-search ffap-url-regexp string-match ffap-url-fetcher ffap-dired-wildcards dired ffap-newfile-prompt file-exists-p y-or-n-p "File does not exist, create buffer? " expand-file-name signal file-error "Opening file buffer" "no such file or directory"] 5 ("c:\\XEmacs\\xemacs-packages\\lisp\\xemacs-base\\ffap.elc" . 29425) nil>() call-interactively(find-file-at-point) This problem does not occur with emacs (neither on unix nor on nt, using the same crypt++.el and folding.el). If I open a non-encrypted version of the file, folding occurs correctly. Guido.