Parked Domains with 301 Redirects

Ok, this is a major headache for me. Isn't the 301 redirect supposed to change the URL 100% of the time?

1. I have 10 parked domains on one master domain account.
2. I have the following code in my root .htaccess file.
   
   RewriteEngine On
   Options +FollowSymlinks
   
   RewriteCond %{HTTP_HOST} !^www.mysite.com$
   RewriteRule ^(.*)$ http://www.mysite.com/$1 [R=301]
3. When I go to parked-site1.com I am redirected to mysite.com with no problem. This works.
4. When I go to parked-site1.com/forum/content ... then there is no redirect! The browser will display parked-site1.com/forum/content as the URL that is being addressed.
5. Google has been indexing two of my oldest parked domains and now is listing over 20,000 cached pages for these URLS.
   
   Just a couple of examples:
   
   ../forum/members/membername/
   ../forum/faq.php
   ../forum/f01/sample-thread-title-12345/

THOUGHTS? My web hosting firm has been working on this for 24 hours. How in the world do I get not just a simple redirect from the domain name itself, but also all of the folders that are listed under the domain name?

Try getting rid of:
Options +FollowSymlinks

ok, hate to think it would be that easy. I'll try it now. I've just about to change webhosts over this issue. I've got a 700,000 post site that's slowly breaking apart the page caches among these old parked domains ... not happy.

nope, didn't work. I'm going to bet that the web host has created an issue and there is some type of problem going on.

You may need to add in the request uri paramter.
check:
Add www to forum url with no trailing slash

Ok, my web hosting firm got it escalated to their top supervisor and he figured it out. (Attention: this is the way my VPS was set with KnownHost, so just heads up if you are running vbseo on Known Host).

I had to turn on the Rewritebase directive as found in the main .htaccess file and everything else took care of itself.

# Some servers require the Rewritebase directive to be# enabled (remove '#' at the beginning to activate)
# Please note: when enabled, you must include the path
# to your root vB folder (i.e. RewriteBase /forums/)
#RewriteBase /


#RewriteCond %{HTTP_HOST} !^www\.yourdomain\.com
#RewriteRule (.*) http://www.yourdomain.com/forums/$1 [L,R=301]