Thread:Project:Support desk/Page titles treated as case sensitive for unknown reason

The first letters of page titles of my wiki are being treated as case sensitive, which is not what I want. I'd need individual pages to have automatically capitalized titles, and for internal links to go to the pages whether the title in the internal link is capitalized or not. $wgCapitalLinks doesn't seem to be the cause - it wasn't in LocalSettings.php before the problem occurred, and adding it in and setting it to either true or false doesn't seem to have any effect whatsoever. I have no idea how first letters of page titles came to be treated as case sensitive in the first place, and none of the documentation for the extensions I use says anything about page titles and case sensitivity.

Totally stumped here, any help would be greatly appreciated! Thank you.

MediaWiki	1.19.2

PHP	5.3.13 (cgi-fcgi)

MySQL	5.1.39-log