Hi Kevin Sorry for the personal cc. But I sent an answer to the list more than 10 hours ago and it didn't appear so far. On Sat, Sep 22, 2007 at 05:43:27AM -0600, Kevin Rodgers wrote: > This bit at the end of whizzy-start-process looks suspicious: > > (save-excursion > (set-buffer buf) > (setq whizzy-status status) > (setq comint-output-filter-functions > (list (function whizzy-filter-output))) > ) > > Perhaps that second setq should be replaced by > > (add-hook 'comint-output-filter-functions 'whizzy-filter-output t t) This works. Thank you very much. I will hand in a bug report. Greetings, Sven