Hi Judy,
I just tried to re-produce this issue on my test portal and was unable to recreate the behavior you reported (see screenshot below), but I may not have the exact same configuration as you. Can you login to our test site http://www21.smith-consulting.com/ and try to replicate the error. This will determine if the issue is with the latest version of the cart or an issue with your specific dnn portal/Cart install.
Please email kevin@smith-consulting.com if you need login credentials.
Thanks,