requested URL was not found on this server

[eluser]Unknown[/eluser]
This worked for me: in htaccess
RewriteEngine On
# Put your installation directory here:
## If your URL is www.example.com/, use /
## If your URL is www.example.com/site_folder/, use /site_folder/

#RewriteBase /ci/

## Do not enable rewriting for files or directories that exist
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d

## For requests that are not actual files or directories,
## Rewrite to index.php/URL
RewriteRule ^(.*)$ index.php/$1 [PT,L]