RewriteEngine On
RewriteBase /modx
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ /modx/index.php?q=$1 [L,QSA,NC]
RewriteEngine On
RewriteBase /modx
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php?q=$1 [L,QSA,NC]
FRUL configuration Use friendly URL : Yes Prefix for friendly URL : Blank Suffix for friendly URL : .html Use friendly Aliases : Yes Use friendly Aliases Path : Yes Allow Duplicate Alias : No Automatically generate Aliases : No


What error message is showing up in your browser, and did you actually rename the file from ht.access -> .htaccess (silly I know but had to ask).
Not Found The requested URL /modx/(alias name).html was not found on this server. Apache/2.0.55 (Ubuntu) PHP/5.1.6 Server at 127.0.1.1 Port 80
#LoadModule rewrite_module modules/mod_rewrite.so
LoadModule rewrite_module modules/mod_rewrite.so
apache2handler
Apache Version Apache/2.0.55 (Ubuntu) PHP/5.1.6
Apache API Version 20020903
Server Administrator webmaster@localhost
Hostname:Port 127.0.1.1:0
User/Group www-data(33)/33
Max Requests Per Child: 0 - Keep Alive: on - Max Per Connection: 100
Timeouts Connection: 300 - Keep-Alive: 15
Virtual Server Yes
Server Root /etc/apache2
Loaded Modules core mod_access mod_auth mod_log_config mod_logio mod_env mod_setenvif prefork http_core mod_mime mod_status
mod_autoindex mod_negotiation mod_dir mod_alias mod_so mod_cgi mod_php5 [b]mod_rewrite [/b]
mod_userdir mod_vhost_alias
Loaded Modules core mod_access mod_auth mod_log_config mod_logio mod_env mod_setenvif prefork http_core mod_mime mod_status
mod_autoindex mod_negotiation mod_dir mod_alias mod_so mod_actions mod_asis mod_auth_mysql mod_cache mod_cgi
mod_expires mod_file_cache mod_headers mod_include mod_mem_cache mod_php5 mod_rewrite mod_userdir mod_usertrack
mod_vhost_alias
Object not found! The requested URL was not found on this server. The link on the referring page seems to be wrong or outdated. Please inform the author of that page about the error. If you think this is a server error, please contact the webmaster. Error 404 127.0.1.1 Sun Dec 3 11:17:19 2006 Apache/2.0.55 (Ubuntu) PHP/5.1.6