What shipping modules do you have enabled?
What version of Zen Cart?
What addons/contributions are installed?

What happens if you "Remove" all those shipping modules (write down all your settings in them first), and then just enable UPS or Table Rate, using the default settings? Do you get the same odd display, or do you get regular rates?

If you get the same odd display, then you've fudged something in your site files somewhere, either in custom coding, custom templating, addons, etc.

If you get regular rates, then you've got something configured wrong in your modules.