I am having an issue with my site http://www.smtsmodels.com using the Twenty Eleven theme.
If you click the Home, Cars, Sky Classics, Special Projects or Contact pages the header image or the actual page itself does not move from left to right. However, if you click either the Blog or Services page and then click on any of the other pages the whole page move slightly either left or right.
I have tried removing the text from both the Blog and Services pages and creating new pages, however, they still cause the same issue.
Is the theme trying to do some sort of resizing?