Hervegirod made a post at http://en.wikipedia.org/wiki/Wikipedia:Administrators%27_noticeboard/Incidents#Error_when_accessing_Talk_page_for_First-person_shooter_engine about seeing "Override this function" when he tries to access a page. I replied to his post. After a few minutes, I saw "Override this function" myself.
It looks like a white screen with
Override this function.
at the top left corner in default Times New Roman.
Version: unspecified
Severity: major
URL: http://en.wikipedia.org/wiki/Wikipedia:Administrators%27_noticeboard/Incidents