mod_rewrite .htaccess trouble I dont get it :)

Hi,

I installed WP 1.5 recently and it rocks 🙂 BUT I have a problem with the mod_rewrite and Im a newbie.

Here it is: WP is installed in a directory http://www.fggdfgd.com/blog/

And I already have an .htaccess in the root of the site to force the browsers to use http://www.domain.com instead of domain.com.

When I am in my blog directory and that the trailing slash is missing, ex: http://www.fggdfgd.com/blog it return right away http://fggdfgd.com/blog/

So my question is what can I do to keep the www ????

Thanks 🙂