Default admin login does not work

Hi
I've installed nopCommerce as described here http://nopcommerce.com/Documentation/Installation.aspx (definitely easiest install procedure for complex app like this I've tried so far)
but entering default admin login [email protected]/admin does not pass. (Your login attempt was not successful. Please try again.)

Is there anything I'm missing ?
How to define new admin accounts ?

Thanks
Daniel

Well now it works, not sure what went wrong, anyway ignore this post :)