Just a note, I went and deleted all of the possible options except priority mail, it still gives the error. The USPS logo comes up, but right under that is the error: -2147219101 Missing value for Service.
I have all four "display" options checked, and "Domestic Types have changed" is set to false, although I would think that
all options should work. I emailed USPS yesterday, they told me that the account was live and ready to go on the production
server. I am not sure why it quit working before, but I have uninstalled the old one and reinstalled this one again, and it
gives the same error. Hrm.