If you get an error like this on your forums:
Code:
Warning: require(/home/******/public_html/forums/register.php) [function.require]: failed to open stream: Permission denied in /home/******/public_html/forums/register.php on line ???
Then the file has the wrong CHmod permissions. Please go into your FTP manager and set the permission accordingly:
Files = 0644
Folders = 0755