Twitter Embedded timeline not showing


I am a newbie to using embedded twitter timeline.

On the classic static page it shows fine, but on site that is controlled by .htaccess it does not load. I believe it is because of .htaccess file configuration as the rest sucha as css is the same.

Here is the content of my .htaccess file:
RewriteEngine on
RewriteBase /
RewriteRule !.(js|ico|gif|jpg|png|css|pdf|xml|shtml|html|swf|zip|php|ttf)$ index.php

nothing else is there.

Any idea? what only shows is the link but not the module.