Clicking' Home' on menu changes URL on all pages

Hello, I have purchased Catch Everest Pro. Very nice work by the way... My site comes up fine and I am able to navigate well. However, when I click the 'Home' link on my menu, every page I navigate to afterwards shows the site name followed by "preview.dns" in the URL. This does not happen when I click on the header logo to redirect me back to the home page. How do I fix this? Thanks, keller113 www.phischon.com