BuddyPress.org

Well, I definitely had PHP 4.3 or better, MySQL 4.1.2 or better, and Apache Module mod_rewrite enabled for “pretty permalinks”. I had installed it a couple of times over before that, but I can’t remember whether I tested the clickthrough to the single hello world post for that (just saw the home page and that the dashboard worked), so I wouldn’t know whether I had a fully stable WordPress install to begin with.

I’ll give the reinstall a try and report the results for posterity in this thread.