Quoting Ivan Savcic, from the post of Thu, 28 Oct:
Hello,
I am having difficulties installing MediaWiki on a subdomain.
I installed it on http://filozofija.imped.net (which is also reachable via http://www.filozofija.imped.net) and when enter that URL, the Wiki's index.php automatically redirects me to http://www.imped.net/index.php/Glavna_strana, a "nonexistent" page (there's no wiki there; Glavna_strana is Serbian translation of English Main_Page).
care to list your rewrite rules for apache?