[Plugin: NextGEN Gallery] How to remove ratio

Hi all, first of all thank you for this great plugin, I’m using it from 2 years and I love it.

Just a little question, at the moment I’m using this way of inclusion in my index.php wordpress file:
<?php echo do_shortcode(‘[slideshow id=1 w=990 h=400]’); ?>

I have the content-box width at 990px and I want that the image will fill it, but I don’t want that ratio will be maintained because the height will be over 700px and it’s not a good thing.
So I’d like to have a slideshow with width at 990px and height at 400px; so there’s is a way to do this?

Cheers

http://wordpress.org/extend/plugins/nextgen-gallery/