WordPress Permalink – WP Doesn't write .htaccess

Dear All,

I have a problem with my WordPress. After setting my permalink structure to /%author%/%post_id%-%postname% I tried posting a few test articles. Although they displayed on index.php, as soon as I clicked on the titles to display the full article I got a 404 – Page Not Found.

After a few tests I discovered that WP wasn’t writing to .htaccess in the main directory of the blog (The blog is installed in /public_html). As of now, the content of the file is:
`
# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ – [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress

CHMOD is set to: 664

If I try visiting the full article by using site.xx/?p=# (Where # is the given id of the article) I have no problem viewing it.

I have a few plugins activated:

Akismet
Quick Cache
WordPress SEO
WPTouch

and am using “Equilibrium” theme translated from English to Italian (by me).

I am also running WP 3.0.3 but it wasn’t in the options when choosing the version here on the Forum.

If allowed (I’ll wait for a mod to give me permission) I’ll post the link to the website.

Thank You & Merry Christmas!

max