[cobalt-users] htaccess ErrorDocument doesn't work

["Edward Bishop" <eddie@xxxxxxxxxxxxxxxx>]

I have been trying to set up custom 404 pages by adding a line in the
following form to my .htaccess files:

ErrorDocument 404 http://mydomain.com/errorpage.htm

but doing so disables the site; trying to access any document under the
directory containing the .htaccess generates a 500 error.

The URL of the error page does exist. I used pico to add the ErrorDocument
line. I have tried this both in new, empty .htaccess files and existing,
working ones being used for authentication. Removing the offending
ErrorDocument line cures the problem. I have also tried CHMOD 664 on
.htaccess.

I have also tried using a local path:

ErrorDocument 404 /home/mysite/public_html/errorpage.htm

I have tried all this on both a RaQ4 and a non-Cobalt RedHat server with
exactly the same result.

Any ideas please?