?q=user and redirect

I have Drupal 6.2 installed: I can login with the default .htaccess
When I uncomment and enabled

RewriteEngine on
RewriteCond %{HTTP_HOST} ^1234567890\.com$ [NC]  
RewriteRule ^(.*)$ http://www.1234567890.com/$1 [L,R=301]

to redirect all requests from 1234567890.com to www.1234567890.com, the ?q= does NOT work anymore.

RewriteCond %{REQUEST_FILENAME} !-f  
RewriteCond %{REQUEST_FILENAME} !-d  RewriteRule ^(.*)$ index.php?q=$1 [L,QSA]

is enabled

Any suggestion? when the rewrite is enabled, I can't login anymore. I must be missing something.