I have the same problem, but only with Internet Explorer. Firefox and Chrome work perfectly. The subpages on the main menu are missing. Before I chose this theme, I also tried themes from Cyberchimps (when I started the site 6 months ago) and I had the same problem and this is exactly the reason why I chose responsive from themeid instead of cyberchimps theme. Responsive was ok even on IE7. Can somebody help?