Hi Gang:
I found a problem with Viper in emacs-app. This is a different bug
than the one that exists in NS-9.0rc3. But, it has an easy solution.
Place the following in your .emacs or something:
(require 'levents)
(defun viper-cond-compile-for-xemacs-or-emacs (xemacs emacs)
(if (featurep 'xemacs) xemacs emacs))
Rodney