MyBB Community Forums

I have enabled SEF URLs on my board and now whenever I click a forum, or a user, it does nothing. What I mean by nothing is, the url will load in the address bar, but what is shown in my web browser is actually just the index.

Any ideas?

have you renamed htaccess.txt as .htaccess at MyBB files server forum root folder ?
it is required

I had not! I thought I had, but clearly not. Woops. Sorry!