I have the same problem going on with my blog. The main page, Archives and the Category pages of the blog are rendering correctly, but when you go to a single post page the sidebar gets moved below the post area.
Here is a link to my main blog http://www.duiprocess.com/blog/
Here is a link to a single blog post page that displays the problem http://www.duiprocess.com/blog/?p=33
The theme I am using is “mtsix”. I did originally have this problem on every page, but after playing around with the padding in the style.css file I was able to fix the problem, but I have not yet been able to fix the problem on the individual post pages.
Any input would be appreciated!
