My header is showing below the question

In all of the other anspress pages my theme works great. But if you click on a question. The question page puts my header and menu below the question and area to answer. How can I fix this or find what php file to edit to help fix the display of this page http://www.onegeeksolutions.net/?question=what-is-the-best-way-to-get-files-off-of-a-windows-computer-that-wont-boot