Problems with categories

[xaxuke]

Yes I have clean both folders and I have the same error.

I've try a new install and the problem is the same.

Look at http://www.elcastillodelplacer.es


My new steps was:
1) New install
2) Check Config.php has 2 new lines. It's ok.
3) Goto Seo Friendly Links and configure it.

4) Update New .htaccess
The code .htaccess is:
RewriteEngine On

RewriteRule ^videos_porno_hd/([0-9]+)/(.*)$ /?id=$1&title=$2&option=video [NC]

RewriteRule ^tag_videos_porno_hd/(.*)$ /?tag=$1&option=tag [NC]

RewriteRule ^category_videos_porno_hd/([0-9]+)/([0-9]+)/(.*)$ /?id=$1&p=$2&category=$3&option=category [NC]

RewriteRule ^juegos_porno/([0-9]+)/(.*)$ /?id=$1&title=$2&option=game [NC]

RewriteRule ^tag_juegos_porno/(.*)$ /?tag=$1&option=tag_game [NC]

RewriteRule ^category_juegos_porno/([0-9]+)/([0-9]+)/(.*)$ /?id=$1&p=$2&category=$3&option=category_game [NC]

4.1) Ups config.php 2 new lines has dissapear!!!
4.2) I write again two new lines!!

5) Insert 2 categories for test
It's Ok

6) I select spanish for the language.

Config.php 2 new lines has dissapear.

I think each time that the script needs to write a line in config.php, the script don't write two new lines.

I'm going to finish all the configuration, but I think I'll works fine if I write two new lines manually.

Thanks