Module installed and the only options setup for domestic USA customers to select is FIRST CLASS PACKAGE and PRIORITY MAIL. Regardless of customer's selection, Priority mail is shown on payment page and charged to the customer.

package sizing default install.

Uninstall and reinstall, same effect.
Add addtional selection options for customer and same effect. Only Priority Mail is charged. Other rates do not appear to be correct. Parcel Post is being quoted the same as Priority Mail.

Uninstall and install default zencart USPS module with identical setup and all functions as expected.

Ideas? Suggestions? More questions?