I am currently test Zen Cart 1.5.5a. It is a fresh installation. The template has not been changed.
As soon as the navigation display (page 1,2,3,...) in the product listing is shown, it overlaps with the "Add selected to cart"-button and the headline for the product list. The navigation block is also to be indented to the left.
I would like to remove the overlapping, but do not want to break the responsive design.
Click image for larger version. 

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