I'm getting lots of pages with 404 errors.

I've tried the generate-errors switch (-o0 or "set generate-errors=0" in the
httrackrc file) and they still show up.

Does this have something to do with the late practice of web servers returning
highly formatted 404 pages?  Like this site...

<http://www.yahoodrummers.com/doesnotexist.htm>

Am I missing something?
-- Cliff