This is really strange, but I think that .htaccess files aren't working on Apache on Mac OS X. I thought that it may be my httpd.conf file, but then I started using the default one, it didn't work!
cmarshall
9:28 pm on Dec 22, 2006 (gmt 0)
They work fine for me. I run a pretty intense wiki system on a standard (non-server) installation, using Apache 1.3 (I have yet to find a compelling reason to upgrade to 2).
Make sure that you configured your httpd.conf file properly (AllowOverwrite, etc.)
I use mod_rewrite and password access stuff, as well as all the standard DirectoryIndex etc.