zencart v1.5.7d, OPC 2.4.6. Guest checkout enabled.

I just noticed that on the create_account page, the state drop-down menu is displayed, but the state field is also displayed at the same time, even US is selected as the country.

If I select another country, which does not have any states defined, then the drop down menu with the "Type a choice below..." and the state field displays, as intended.

If I then select US again, then only the state drop down menu is displayed, as it should be.

So, the first time US is selected as country, then both the state drop down menu and the state field are displayed, but the second time I select US as country its not.

Is this a known issue? Any ideas for a fix?

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