Wordpress permalinks (mod rewrite)

I'm trying to get Wordpress up and running in a directory (/blog), but as there's a .htaccess file in the root directory I think it's conflicting when I turn on permalinks. When I try to visit a page such as http://www.domain.com/blog/2011/03/article-name/ I get a 404. I can however, visit http://www.domain.com/blog/

Here's the .htaccess from the root directory:

RewriteEngine On
RewriteBase /

#If not valid file send request to index.php
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ index.php?/$1 [L]

Here's the .htaccess from the /blog directory:

RewriteBase /blog/
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /blog/index.php [L]

Any ideas how I can fix the wordpress permalinks? I have ac开发者_如何学Gocess to both .htaccess files (if the solution requires editing the one in the root directory)..

Have you tried commenting out the WordPress related content in the root .htaccess file? If WP is installed in a sub directory, I believe that .htaccess file should be doing all the work