What controls the display of the cart widget in marketpress pro

Since installing marketpress I have had a curious display of the cart widget in the upper right corner on the last page saved and no items in the cart. If I add a page then go to that page it will have the cart widget popping out. If I edit a page, update that page and go to it it will have the cart widget in the right upper corner.

To get it off the last page I added or updated I go to the store/products page and click on update. It can be any page but what ever page I save last will have the widget.

Any idea how to stop this behavior ?
Am I correct in assuming that it should only be displayed in the first place if their are items in the cart ?