Menu not scrolling on Wide Range Lite

Hello, I have made a website using your theme - it's great! I am considering buying the full version. The only problem I have had is that the menu doesn't scroll down with the page body and so you can't see all the pages on it. Is it possible to change this? or is it possible in the full version. the website is http://heather46973.ipage.com/northwessextherapies/ Thank you!