SUPER-URGENT! MVC / RewriteRule .htaccess issue on live server

Hi.

I have an htaccess file that performs MVC routing (file content below).  This works perfectly on local, and staging servers, however fails for some reason on live.

I have ABSOLUTELY no idea whats going on.  If I enter the following url:

http://ggmr.co.uk/home

typically this gets redirected to http://ggmr.co.uk/route.php and the MVC framework kicks in and serves up the correct content.

The problem on live is that the router object receives this:

http://ggmr.co.uk/route.php/home

.. whereas normally it receives this:

http://ggmr.co.uk/home

.. instead.  Why?!?!

htaccess:

#Default document
DirectoryIndex index.php

# Turn rewriting on
Options +FollowSymLinks
RewriteEngine On

# Send request via route.php but only if its not a real file or folder
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)$ http://ggmr.co.uk/route.php/$1 [L]

Currently our site is down and I need help urgently please!!

Thanks, TheFoot