Web preview has some pages shifted to side

[Phill]

I am having this problem with two of the pages and have checked the placeholder properties and compared them with the one for the index page but cannot see any differences. If I select a single page web preview then the selected page shows correctly centered. If full preview is selected then when clicking onto the page links on the index page two of the pages show shifted right.
Cannot understand why the rightshifted pages show ok when selected in single page preview.
I am attaching the Xara file which I had modified from the Xara template entitled ""hospitality_website. AS that original file previews correctly it is obvious that my changes made to text and pictures are causing the problem.
Woukls appreciate your ideas on this please. Thanks