Apache2 does not enable htaccess

[Gorka <gorkalinux@yahoo.es>]

I've put my .htaccess under /var/www with this lonely line ...

IndexIgnore *

... also there is in /etc/apache2/sites-available/default the following 
content ...

<VirtualHost *:80>
        ServerAdmin webmaster@localhost

        DocumentRoot /var/www
        <Directory />
                Options FollowSymLinks
                AllowOverride None
        </Directory>
        <Directory /var/www/>
                Options Indexes FollowSymLinks MultiViews
                AllowOverride All
                Order allow,deny
                allow from all
        </Directory>

        ScriptAlias /cgi-bin/ /usr/lib/cgi-bin/
        <Directory "/usr/lib/cgi-bin">
                AllowOverride None
                Options +ExecCGI -MultiViews +SymLinksIfOwnerMatch
                Order allow,deny
                Allow from all
        </Directory>

        ErrorLog ${APACHE_LOG_DIR}/error.log

        # Possible values include: debug, info, notice, warn, error, crit,
        # alert, emerg.
        LogLevel warn

        CustomLog ${APACHE_LOG_DIR}/access.log combined
</VirtualHost>

... As you can see, I've already changed AllowOverride from None to All
But .htaccess doesn't seem to work yet. When I point to the url it lists 
the whole content of /var/www
What's the matter? Any idea?