301 working but not rewritting URL

Hi there,

I'm trying to rewrite this page:

/acatalog/dell_laptop.html

To this page:

/dell.html

So when people type /dell.html it displays /acatalog/dell_laptop.html but the URL shows /dell.html Phew

I have tried the following code, which redirects the page but fails to rewrite the URL, so it displays the old one still. Here is the code:

Options +Indexes
Options +FollowSymlinks
RewriteEngine on
RewriteBase /
RewriteRule ^dell.html$ acatalog/dell_laptop.html [R=301,L]

Code (markup):

Help please!

Thanks