MyBB Community Forums

I just wanted to post on my forum but when i went onto the Catergory i wanted to post in it comes up with a white screen & "Access denied". tried it with SEF on

Can you post a link to your board?

sure
Click Me!

Try disabling SEO URLs.

ok disabled and still Access Denied

Double check your forumpermissions =P

Make sure your php files are CHMOD 755.

Also, please list any plugins/modifications you have installed.

all chmoded and plugins:
Hello World
Askimet
Miss You Email
AJAX Shoutbox

Do you have access to your server's error log to see if it is generated by the web server?