How to make mod_rewrite rules working?

We use virtual user directory paths, so you can get error when trying to setup search engine friendly URLs or trying to pass virtual directory names to PHP scripts. It can be fixed very easy. Open your .htaccess file and add this line at the top of the file or before the first rewrite rule:

RewriteBase /

Note: if your script is installed on some directory, for example /forum, you have to place RewriteBase /forum line to the .htaccess file (.htaccess file must be also located in /forum directory)