THCCwiki:Known bugs

User name case

User names are forced to start with an uppercase letter. This is standard for Mediawiki by policy.

\includes\User.php Line 498 in function isValidUserName

http://en.wikipedia.org/wiki/Help:Page_name#Case-sensitivity_of_the_first_character

See http://www.mediawiki.org/wiki/Manual:$wgCapitalLinks

Unable to create thumbnail images

Error creating thumbnail:
Warning: passthru() has been disabled for security reasons in 
/home/thcczzzz/public_html/mediawiki/includes/GlobalFunctions.php
on line 2131