Hello Stephan,
This might seem a bit confusing, but a new Standard Accounts system requires passwords in two places: Standard ID and password & your Signature and password.
What I believe you have retrieved was a Standard ID password. If you run the Standard Accounts, and gave the Standard ID and password, and you still got a window asking you for login and password, this might mean you in fact moved to the next step, where the system requires a Signature and password from you. This would be your FO login and password.
Please, try again having the two-step login procedure in mind. Once you log in correctly, you should not be asked for Standard ID (besides some exceptional situations).
Ewa Subotowicz
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