I am using HostGator, unlimited package.
Did you use enqueue functionality for scripts and styles?
<meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1">
Hi, and also this theme is by pixelwars, called Responsy:http://themeforest.net/item/responsy-wp-responsive-html5-portfolio/2290361
i recommend the portfolio category.
There is a toggle in this item:http://themeforest.net/item/responsy-responsive-html5-portfolio/2126658