how to remove index.php?

[eluser]bauc[/eluser]
Is your site hosted in a subdirectory? You either need to edit the .htaccess line

From:
RewriteRule ^(.*)$ index.php/$1 [L,QSA]

To
RewriteRule ^(.*)$ /{thedirectorywhereindex.phpis/}index.php/$1 [L,QSA]

Just change the directory {} part. The other solution is to edit your hosts file and edit the Apache virtual host file.